Did the Russians sell Alaska to US for 7.2 million in 1867?

Yes, the Russians sold Alaska to the United States for $7.2 million in 1867. The treaty was signed on March 30, 1867, and ratified by the U.S. Senate on April 9, 1867. The formal transfer of Alaska from Russia to the United States took place on October 18, 1867, in Sitka, Alaska.