Alaska is a constituent state of the United States.How did Alaska become part of the united states? It joined the union on January 3, 1959, as the 49th state. The history of Alaska can be traced back to the Upper Paleolithic period (around 14,000 BC). During that period, the region was populated by Alaska Native groups. What was the main reason the US bought Alaska? Americans got to know that the region has a potential for fur, gold and fisheries and increased levels of trade with Japan and China. Hence, America decided to establish its territory. Alaska was acquired by the US in 1867. Alaska history quiz is one of the best ways to enhance your history knowledge. How old is Alaska and who owns Alaska? Our latest trivia quiz has included all the historical facts to increase your knowledge of history. You can share these trivia questions on Alaska history with your friends.