NASA Mars Exploration Program

This Day in History: July 4

This Day in History: July 4

In 1776, Congress ratified the Declaration of Independence. Four of its signers represented Maryland: Samuel Chase, William Paca, Thomas Stone and Charles Carroll. Try using this to remember their names: Paca Chased Carroll with a Stone. (Handout photo)

1802: The U.S. Military Academy opened at West Point, N.Y.

1863: Union troops under Gen. Ulysses Grant defeated Confederate forces at Vicksburg, Miss., ending a 14-month siege in the Civil War.

1997: NASA’s Pathfinder spacecraft landed on Mars, inaugurating a new era in the search for life on the Red...