Alaska is purchased from Russia for $7.2 million, about two cents/acre ($4.19/km2), by United States Secretary of State William H. Seward.

Alaska is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is considered to be the northernmost, westernmost, and easternmost state in the United States. It borders the Canadian territory of Yukon and the province of British Columbia to the east. It shares a western maritime border, in the Bering Strait, with Russia's Chukotka Autonomous Okrug. The Chukchi and Beaufort Seas of the Arctic Ocean lie to the north, and the Pacific Ocean lies to the south. Technically, it is a semi-exclave of the U.S., and is the largest exclave in the world.

The Alaska Purchase was the purchase of Alaska from the Russian Empire by the United States for a sum of $7.2 million in 1867. On May 15 of that year, the United States Senate ratified a bilateral treaty that had been signed on March 30, and American sovereignty became legally effective across the territory on October 18.

The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about 22,800,000 km² (8,800,000 sq mi), roughly one-sixth of the world's landmass, making it the third-largest empire in history, behind only the British and Mongol empires. It also colonized Alaska between 1799 and 1867. The empire's 1897 census, the only one it conducted, found a population of 125.6 million with considerable ethnic, linguistic, religious, and socioeconomic diversity.

The United States secretary of state (SecState) is a member of the executive branch of the federal government of the United States and the head of the U.S. Department of State.