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The world 
The world 

The Blue Marble, a photograph of the planet Earth made on 7 December 1972 by the crew of the Apollo 17 spacecraft.

The world is the totality of entities, the whole of reality, or everything that exists. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique while others talk of a "plurality of worlds". Some treat the world as one simple object while others analyze the world as a complex made up of parts.

In scientific cosmology, the world or universe is commonly defined as "[t]he totality of all space and time; all that is, has been, and will be". Theories of modality talk of possible worlds as complete and consistent ways how things could have been. Phenomenology, starting from the horizon of co-given objects present in the periphery of every experience, defines the world as the biggest horizon or the "horizon of all horizons". In philosophy of mind, the world is contrasted with the mind as that which is represented by the mind. Theology conceptualizes the world in relation to God, for example, as God's creation, as identical to God or as the two being interdependent. In religions, there is a tendency to downgrade the material or sensory world in favor of a spiritual world to be sought through religious practice. A comprehensive representation of the world and our place in it, as is found in religions, is known as a worldview. Cosmogony is the field that studies the origin or creation of the world while eschatology refers to the science or doctrine of the last things or of the end of the world.

In various contexts, the term "world" takes a more restricted meaning associated, for example, with the Earth and all life on it, with humanity as a whole or with an international or intercontinental scope. In this sense, world history refers to the history of humanity as a whole and world politics is the discipline of political science studying issues that transcend nations and continents. Other examples include terms such as "world religion", "world language", "world government", "world war", "world population", "world economy", or "world championship". (Full article...)

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Lahore (/ləˈhɔːr/ lə-HOR; Punjabi: لہور [lɔː˩˥ɾ]; Urdu: لاہور [laːˈɦɔːɾ] ) is the capital and largest city of the Pakistani province of Punjab. It is the second largest city in Pakistan, after Karachi, and 26th largest in the world, with a population of over 13 million. Located in north-eastern Punjab along the River Ravi, it is the largest Punjabi-speaking city in the world. Lahore is one of Pakistan's major industrial and economic hubs. It has been the historic capital and cultural centre of the wider Punjab region, and is one of Pakistan's most socially liberal, progressive, and cosmopolitan cities.

Lahore's origin dates back to antiquity. The city has been inhabited for around two millennia, although it rose to prominence in the late 10th century. Lahore was the capital of several empires during the medieval era, including the Hindu Shahis, Ghaznavids and Delhi Sultanate. It reached the height of its splendor under the Mughal Empire between the late 16th and early 18th centuries and also served as its capital city for many years. During this period, it was one of the largest cities in the world. The city was captured by the forces of the Persian Afsharid ruler Nader Shah in 1739. Although the Mughal authority was re-established, it fell into a period of decay while being contested among the Afghans and the Sikhs between 1748 and 1798. Lahore eventually became the capital of the Sikh Empire in the early 19th century, regaining some of its lost grandeur. Lahore was annexed to the British Raj in 1849 and became the capital of British Punjab. Lahore was central to the independence movements of both India and Pakistan, with the city being the site of both the Declaration of Indian Independence and the resolution calling for the establishment of Pakistan. It experienced some of the worst rioting during the Partition period preceding Pakistan's independence. Following the success of the Pakistan Movement and the subsequent partition of British India in 1947, Lahore was declared the capital of Pakistan's Punjab province. (Full article...)

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Saudi Arabia, officially the Kingdom of Saudi Arabia (KSA), is a country in West Asia and the Middle East. It covers the bulk of the Arabian Peninsula and has a land area of about 2150000 km2 (830000 sq mi), making it the fifth-largest country in Asia and the largest in the Middle East. It is bordered by the Red Sea to the west; Jordan, Iraq, and Kuwait to the north; the Persian Gulf, Qatar and the United Arab Emirates to the east; Oman to the southeast; and Yemen to the south. Bahrain is an island country off its east coast. The Gulf of Aqaba in the northwest separates Saudi Arabia from Egypt and Israel. Saudi Arabia is the only country with a coastline along both the Red Sea and the Persian Gulf, and most of its terrain consists of arid desert, lowland, steppe, and mountains. The capital and largest city is Riyadh; the kingdom also hosts Islam's two holiest cities of Mecca and Medina.

Pre-Islamic Arabia, the territory that constitutes modern-day Saudi Arabia, was the site of several ancient cultures and civilizations; the prehistory of Saudi Arabia shows some of the earliest traces of human activity outside Africa. The world's second-largest religion, Islam, emerged in what is now Saudi Arabia. In the early 7th century, the Islamic prophet Muhammad united the population of the Arabian Peninsula and created a single Islamic religious polity. Following his death in 632, his followers expanded the territory under Muslim rule beyond Arabia, conquering territories in North Africa, Central, South Asia and Iberia in a matter of decades. Arab dynasties originating from modern-day Saudi Arabia founded the Rashidun (632–661), Umayyad (661–750), Abbasid (750–1517), and Fatimid (909–1171) caliphates, as well as numerous other dynasties in Asia, Africa, and Europe. (Full article...)
List of countries

The Seven Wonders of Portuguese Origin in the World are a list of seven significant landmarks across the world which were built by the Portuguese during the six centuries of the Portuguese Empire (1415-1999). The competition was held in conjunction with the Ministry of Culture of Portugal and the Portuguese Institute for Architectural Heritage.

The objective of the list and competition was to promote the architectural heritage and legacy of the Portuguese across the world. A commission pre-selected 27 notable monuments of Portuguese origin from 16 countries across Asia, Africa, and the Americas. The results of the competition were announced at a ceremony at the Portugal Day celebrations in 2010. (Full article...)

Related portals

(Full article...)
  • Image 3 A view of Kaptai National Park This is a list of protected areas of Bangladesh. Bangladesh is a country in South Asia. It is the eighth-most populous country in the world, with a population exceeding 163 million people in an area of either 148,460 square kilometres (57,320 sq mi) or 147,570 square kilometres (56,980 sq mi), making it one of the most densely populated countries in the world. (Full article...)
    A view of Kaptai National Park

    This is a list of protected areas of Bangladesh. Bangladesh is a country in South Asia. It is the eighth-most populous country in the world, with a population exceeding 163 million people in an area of either 148,460 square kilometres (57,320 sq mi) or 147,570 square kilometres (56,980 sq mi), making it one of the most densely populated countries in the world. (Full article...)
  • Image 4 Map of the Philippine archipelago In the Philippines, Protected Areas are administered by the Department of Environment and Natural Resources (DENR)'s Biodiversity Management Bureau under the National Integrated Protected Areas System (NIPAS) Act of 1992. As of 2020, there are 244 Protected Areas in the Philippines covering a total area of about 7,760,000 hectares (19,200,000 acres) – 15.4% of the Philippines' total area. (Full article...)


    In the Philippines, Protected Areas are administered by the Department of Environment and Natural Resources (DENR)'s Biodiversity Management Bureau under the National Integrated Protected Areas System (NIPAS) Act of 1992.

    As of 2020, there are 244 Protected Areas in the Philippines covering a total area of about 7,760,000 hectares (19,200,000 acres) – 15.4% of the Philippines' total area. (Full article...)
  • Image 5 Upolu Island, Samoa This is a list of some protected areas of Samoa which include national parks, reservations, protected nature zones, marine reserves and other areas of significant biodiversity and conservation. In 1994, Samoa ratified the international and legally binding treaty, the Convention on Biological Diversity to develop national strategies for conservation and sustainable use of biological diversity. In 2010, protected areas in the country cover 5% of land although the government aims to increase protected areas coverage to 15%. (Full article...)
    Upolu Island, Samoa

    This is a list of some protected areas of Samoa which include national parks, reservations, protected nature zones, marine reserves and other areas of significant biodiversity and conservation.

    In 1994, Samoa ratified the international and legally binding treaty, the Convention on Biological Diversity to develop national strategies for conservation and sustainable use of biological diversity. In 2010, protected areas in the country cover 5% of land although the government aims to increase protected areas coverage to 15%. (Full article...)
  • Image 6 Papua New Guinea is home to several protected areas, which receive protection because of their environmental, cultural or similar value. The total area of Papua New Guinea protected territories is 14,330 km2 (5,530 sq mi), which amounts to approximately 3.07% of the country's territory. The total number of protected areas as 2018 is 71. (Full article...)
    Papua New Guinea is home to several protected areas, which receive protection because of their environmental, cultural or similar value.

    The total area of Papua New Guinea protected territories is 14,330 km2 (5,530 sq mi), which amounts to approximately 3.07% of the country's territory. The total number of protected areas as 2018 is 71. (Full article...)
  • Image 7 Kejimkujik National Park, Little River This is a list of protected areas of Nova Scotia. (Full article...)
    Kejimkujik National Park, Little River

    This is a list of protected areas of Nova Scotia. (Full article...)
  • Image 8 The protected areas of Bhutan are its national parks, nature preserves, and wildlife sanctuaries. Most of these protected areas were first set aside in the 1960s, originally covering most of the northern and southern regions of Bhutan. Today, protected areas cover more than 42% of the kingdom, mostly in the northern regions. Protected areas also line most of Bhutan's international borders with China and India. (Full article...)

    The protected areas of Bhutan are its national parks, nature preserves, and wildlife sanctuaries. Most of these protected areas were first set aside in the 1960s, originally covering most of the northern and southern regions of Bhutan. Today, protected areas cover more than 42% of the kingdom, mostly in the northern regions. Protected areas also line most of Bhutan's international borders with China and India. (Full article...)
  • Image 9 A family of Asiatic lions at Gir National Park The Gujarat state of western India has four National Parks and twenty-three wildlife sanctuaries which are managed by the Forest Department of the Government of Gujarat. (Full article...)
    A family of Asiatic lions at Gir National Park

    The Gujarat state of western India has four National Parks and twenty-three wildlife sanctuaries which are managed by the Forest Department of the Government of Gujarat. (Full article...)
  • Image 10 Protected areas of Tamil Nadu cover an area of 3,305 km2 (1,276 sq mi), constituting 2.54% of the geographic area and 15% of the 22,643 km2 (8,743 sq mi) recorded forest area of the state of Tamil Nadu in South India. It ranks 14th among all the states and union territories of India in terms of total protected area. Protected areas in South India were created from private hunting grounds of the erstwhile Maharajas of the princely states. Mudumalai National Park was established in 1940 and was the first modern wildlife sanctuary in South India. The protected areas are administered by the Ministry of Environment and Forests of Government of India and the Tamil Nadu Forest Department. (Full article...)
    Protected areas of Tamil Nadu cover an area of 3,305 km2 (1,276 sq mi), constituting 2.54% of the geographic area and 15% of the 22,643 km2 (8,743 sq mi) recorded forest area of the state of Tamil Nadu in South India. It ranks 14th among all the states and union territories of India in terms of total protected area.

    Protected areas in South India were created from private hunting grounds of the erstwhile Maharajas of the princely states. Mudumalai National Park was established in 1940 and was the first modern wildlife sanctuary in South India. The protected areas are administered by the Ministry of Environment and Forests of Government of India and the Tamil Nadu Forest Department. (Full article...)
  • Image 11 Vegetation outside Goz Beïda The wildlife of Chad is composed of its flora and fauna. Bush elephants, West African lions, buffalo, hippopotamuses, Kordofan giraffes, antelopes, African leopards, cheetahs, hyenas, and many species of snakes are found there, although most large carnivore populations have been drastically reduced since the early 20th century. Elephant poaching, particularly in the south of the country in areas such as Zakouma National Park, is a severe problem. (Full article...)
    Vegetation outside Goz Beïda

    The wildlife of Chad is composed of its flora and fauna. Bush elephants, West African lions, buffalo, hippopotamuses, Kordofan giraffes, antelopes, African leopards, cheetahs, hyenas, and many species of snakes are found there, although most large carnivore populations have been drastically reduced since the early 20th century. Elephant poaching, particularly in the south of the country in areas such as Zakouma National Park, is a severe problem. (Full article...)
  • Image 12 As of present, there are around 400 protected areas in Pakistan that are recognized by IUCN. The total protected land area represents 13% of Pakistan's landmass as of 2020, The Government of Pakistan plans to increase it to at least 15% by 2023. As a signatory of the UN Convention on Biological Diversity, Pakistan is committed to expanding its protected areas to encompass 17% of its total territory by the year 2030. This ambitious goal aims to ensure the long-term conservation of nature, safeguard vital ecosystem services, and preserve the cultural values associated with these protected areas. (Full article...)
    As of present, there are around 400 protected areas in Pakistan that are recognized by IUCN. The total protected land area represents 13% of Pakistan's landmass as of 2020, The Government of Pakistan plans to increase it to at least 15% by 2023. As a signatory of the UN Convention on Biological Diversity, Pakistan is committed to expanding its protected areas to encompass 17% of its total territory by the year 2030. This ambitious goal aims to ensure the long-term conservation of nature, safeguard vital ecosystem services, and preserve the cultural values associated with these protected areas. (Full article...)
  • Image 13 Heathland at the Hoge Kempen National Park There are numerous protected areas in Belgium with a wide variety of types, protection levels and sizes. The below list gives an overview of the most important protected areas. (Full article...)
    Heathland at the Hoge Kempen National Park

    There are numerous protected areas in Belgium with a wide variety of types, protection levels and sizes. The below list gives an overview of the most important protected areas. (Full article...)
  • Image 14 Protected areas of West Bengal cover 4% of the state area. Forests make up 14% of the geographical area of West Bengal, which is lower than the national average of 33%. West Bengal has a wide variety of fauna, including Bengal tigers, Indian leopards, sloth and Himalayan black bears, chital and sambar (deer), Indian boars, pygmy hogs, Indian elephants, Indian peafowl, great Indian hornbills, Eurasian spoonbills, brahminy ducks, king and Indian cobras, white-lipped pit viper, Indian and reticulated pythons, mugger crocodiles, saltwater crocodiles, gharials, and many more. A huge montane forest, Dooars, is situated in the Northern West Bengal districts of Alipur Duar, Darjeeling, and Kalimpong. Part of the world's largest mangrove forest, Sundarbans, is located in southern West Bengal. There are 6 national parks and 15 wildlife sanctuaries in West Bengal. (Full article...)
    Protected areas of West Bengal cover 4% of the state area. Forests make up 14% of the geographical area of West Bengal, which is lower than the national average of 33%. West Bengal has a wide variety of fauna, including Bengal tigers, Indian leopards, sloth and Himalayan black bears, chital and sambar (deer), Indian boars, pygmy hogs, Indian elephants, Indian peafowl, great Indian hornbills, Eurasian spoonbills, brahminy ducks, king and Indian cobras, white-lipped pit viper, Indian and reticulated pythons, mugger crocodiles, saltwater crocodiles, gharials, and many more. A huge montane forest, Dooars, is situated in the Northern West Bengal districts of Alipur Duar, Darjeeling, and Kalimpong. Part of the world's largest mangrove forest, Sundarbans, is located in southern West Bengal.
    There are 6 national parks and 15 wildlife sanctuaries in West Bengal. (Full article...)
  • Image 15 Protected areas of Eswatini include any geographical area protected for a specific use inside the landlocked country of Eswatini, in southern Africa. Within Eswatini there is a mix of national, private and community-owned protected areas. They include national parks, nature reserves, wildlife sanctuaries and game reserves. (Full article...)
    Protected areas of Eswatini include any geographical area protected for a specific use inside the landlocked country of Eswatini, in southern Africa.

    Within Eswatini there is a mix of national, private and community-owned protected areas. They include national parks, nature reserves, wildlife sanctuaries and game reserves. (Full article...)
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