What did the USA purchase from Russia for $7,200,000 in 1857?
Alaska Purchase from Russia to the United States, which took place on October 19, 1867. The date is by the Gregorian calendar, which came into effect in Alaska the following day to replace the Julian calendar used by the Russians (the Julian calendar in the 19th century was 12 days behind the Gregorian calendar). Alaska Day is a holiday for all state workers. Alaska Purchase The Alaska Purchase () was the United States' acquisition of Alaska from the Russian Empire on March 30, 1867, by a treaty ratified by the United States Senate, and signed by President Andrew Johnson. Russia wanted to
USA-200 science instrument as part of the TWINS programme. USA-200 USA-200, also known as NRO Launch 28 or NROL-28, is an American signals intelligence satellite, operated by the National Reconnaissance Office. Launched in 2008, it has been identified as the second satellite in a series known as "Improved Trumpet", "Advanced Trumpet", or "Trumpet follow-on"; a replacement for the earlier Trumpet series of satellites. USA-200 was launched by an Atlas V carrier rocket, flying in the 411 configuration, operated by United Launch Alliance. The rocket was the first Atlas V to launch from Vandenberg Air Force Base, flying from Space Launch Complex