The Equal Rights Amendment, or ERA, was a proposed amendment to the Constitution of the United States that was intended to guarantee legal equality for women. The amendment never received enough votes from the states for... More » History Modern History US History

The active involvement of Martin Luther King, Jr. in the civil rights movement in the United States spans 13 years, beginning in 1955 when he engaged in a boycott against racial segregation in public transportation and e... More » History Modern History

A rectangle has four right angles and two pairs of equal sides. Rectangles are four-sided polygons known as quadrilaterals. Other types of quadrilaterals are the square, rhombus, trapezoid, parallelogram and kite. More »

In the United States, women universally gained the right to vote, called women's suffrage, on Aug. 26, 1920, through the 19th Amendment to the U.S. Constitution. Eight million women exercised their right to vote during t... More »

The 15th Amendment of the U.S. Constitution states that neither the nation nor any individual state can deny or change the voting rights of an American citizen, regardless of his race, color or past experiences as a slav... More »

The 14th Amendment to the Constitution states that those people born in or naturalized by the United States are citizens of the United States and the state where they live. They are therefore entitled to the protection o... More »

African-Americans were granted the right to vote in elections in the United States when the 15th Amendment to the U.S. Constitution was ratified on Feb. 3, 1870. It was the last of the three Reconstruction Amendments, wh... More » History Modern History US History