First artificial satellite in orbit, kicked off the space race.
Sputnik
Movement of thousands of African American from 1914 to 1920.
Great Migration
Often called the last major battle of the American Revolution, taking place on Sept 28th-Oct 19th, 1781.
Battle of Yorktown
This president from more than 150 years ago is still the tallest ever president.
Abraham Lincoln
1844 invention that connected communication throughout the US.
Telagraph
Term describing area military forces and operations are prohibited.
DMZ
President outlined these in 1918, as a guideline for lasting peace and freedom.
14 points
Battle of Gettysburg
Before his presidency, this president commanded the U.S. armies in 1864.
Ulysses S. Grant
The US nuclear bomb project was code named this.
Project Manhattan
Established line dividing north and south Korea.
38th Parallel
What began the first world war.
Assassination of arch-duke Ferdinand.
Normandy Landings on June 6th, 1944, are more often called this.
D-day
First president to begin tradition of throwing the first MLB pitch in 1910.
William Howard Taft
Twentieth century system first used in mass production by Henry Ford.
Term describing search for communists in America during 1950's, named after leader of HUAC.
McCarthyism
Alliance consisting of the US, Italy, Britain, and France in ww1.
Allies
On Sept. 17, 1862, this battle ended the Confederacy invasion of the North.
Antietam
This president appeared on "TIME" magazine over sixty times.
Richard Nixon
American inventor of light bulb and motion picture camera.
Thomas Edison
Organization between the US and west European countries primarily to gain protection from Soviet expansion.
NATO
Treaty ending world war one.
Treaty of Versailles
This battle marks the turning point of the American Revolutionary war.
Battle(s) of Saratoga
In his 1964 State of the Union address, this president declared their "Unconditional war on poverty".
Lyndon B. Johnson
Widely used transportation system during 1900s industrial development.
Railroads