In 1492, Columbus sailed the ocean blue This section of the Timeline of United States history concerns events before 1600. ... A 19th century illustration of the Salem Witch Trials This section of the Timeline of United States history concerns events from 1600 to 1699. ... Rev. ... The Boston Massacre, an engraving by patriot Paul Revere. ... U.S. territorial extent in 1790 This section of the Timeline of United States history concerns events from 1790 to 1819. ... This section of the Timeline of United States history concerns events from 1820 to 1859. ... This is a timeline of significant events leading to the American Civil War. ... More than 550,000 Americans died fighting the Civil War, include these men felled during the bloody Battle of Antietam This section of the Timeline of United States history concerns events from 1860 to 1899. ... Bold textThis section of the Timeline of United States history concerns events from 1900 to 1929. ... This section of the Timeline of United States history concerns events from 1930 to 1949. ... This section of the Timeline of United States history concerns events from 1950 to 1969. ... This section of the Timeline of United States history concerns events from 1970 to 1989. ... This section of the Timeline of United States history concerns events from 1990 to present. ...