usa history By Frozed_officiel 1492 Découverte de l'Amérique 1617 Le pacte de maryflower Period: 1789 to 1797 George Washington Period: 1797 to 1798 John Adams Period: 1801 to 1805 Thomas Jefferson (1801 – 1809) Period: 1841 to 1842 John Tyler Period: 1861 to 1865 Abraham Lincoln Period: 2001 to 2009 George W. Bush