Leaders First Emperor of Rome: Augustus (ca. 27 BC) First Christian Monarch of Sweden: Olof Skötkonung (995) First President of the United States: George Washington. (1789) First US President to reside in the White House: John Adams (1797) First Prime Minister of Sweden: Louis De Geer (1876) World's first elected female premier: Sirimavo Bandaranaike, as Prime Minister of Sri Lanka. (1960) First female Prime Minister of the United Kingdom: Margaret Thatcher. (1979) First black President of South Africa: Nelson Mandela. (1994) Space Science First artificial satellite launched into orbit: Sputnik 1. (1957) First animal to orbit Earth: Laika. (1957) First spacewalk: Aleksei Leonov. (1965) First man in space: Yuri Gagarin. (1961) First woman in space: Valentina Tereshkova.(1963) First human to walk on the Moon: Neil Armstrong. (1969) Sporting First human to run a mile under 4 minutes: Roger Bannister. (1954) First woman to swim the English Channel: Gertrude Ederle. (1926) Computers First programmable digital computer: Z3. (1941) First programmable electronic computer: ENIAC. (1946) First relational database: Oracle database. (1979)
