Except for a few cities and significant oases, the arid climate has been a historic obstacle to the establishment of communities in the Arabian Peninsula. People of various cultures have lived on the peninsula for over 5000 years. The Dilmun culture, along the Gulf coast, was contemporary with the Sumerians and the ancient Egyptians, and most empires of the ancient world established trade with the states of the peninsula.
During World War II, Greenland effectively separated, both socially and economically, from Denmark, moving closer to the United States and Canada. After the war, control of the island returned to Denmark, with its colonial status removed, and although Greenland remains part of the Kingdom of Denmark, it has been autonomous since 1979. The island is the only territory left by the European Union, as well as having the associated status.
The last continents to be invaded by Europeans were America and Oceania about 40 thousand years ago. In relation to the settlement of our continent, one of the most well-known theories is that which was first proposed in the year 1590 AD by José de Acosta and became accepted in 1930. Such a hypothesis became scientifically accepted between the years 1928 and 1937 when artifacts of the type previously discovered in the Beringa region were found in archaeological excavations near the city of Clovis (New Mexico), USA.
According to the Nordic sagas, Greenland was discovered around the year 900 by the Norwegian navigator Gunnbjörn Ulfsson. During the 980s, the Icelandic-based Vikings were Greenland’s first European visitors, exploring the uninhabited west coast of the island.
Nowadays it is a consensus among experts that during the last glaciation the concentration of ice on the continents caused the oceans to fall by at least 120 meters. This descent caused in several points of the planet the appearance of diverse terrestrial connections, as for example Australia-Tasmania with New Guinea; Philippines and Indonesia; Japan and Korea. One of these places was Beringia, name that receives the region that divides Asia from America, it is in this area that both continents came into contact. Due to its low depth (between 30 and 50 meters) the descent of sea level uncovered a vast territory that reached 1500 KM, uniting the lands of Siberia and Alaska, approximately 40,000 years ago.