On This Day: Ford Model T Unveiled

On Sept. 23, 1952, vice presidential candidate Richard Nixon gave a speech defending the existence of a controversial campaign fund. His discussion of his family life, including a mention of the family dog named Checkers, drew sympathy from the public, helping him maintain his position on the presidential ticket.

On July 4, 1826, exactly 50 years after the Declaration of Independence first asserted American sovereignty, former Presidents John Adams and Thomas Jefferson both passed away.

Many significant events have taken place on Dec. 25, including the rise of famous leaders, the fall of others, and the end of war for a single day.

On Dec. 20, 1989, the U.S. launched an invasion of Panama to remove Gen. Manuel Noriega from power.

Find out why we celebrate Christmas on Dec. 25, when the holiday became popular in America, and from where the traditions of Santa Claus and the Christmas tree are derived.

Since the mid-fourth century, Western Christians have celebrated Christmas on Dec. 25 to honor the birth date of Jesus Christ. The date is not supported by Biblical evidence, however, and the true origins of the celebration may lie in secular festivals centered around the winter solstice.

This weekend, most Americans will lose an hour of sleep last night as daylight saving time takes effect. Why do we fall back one hour in the autumn, and spring ahead one hour in the spring?

Skype gives students and teachers the ability to connect with the outside world without leaving the classroom, allowing them to meet face-to-face with the subjects of their learning or with students from other cultures. Teachers across the world have already arranged many enlightening and unforgettable conferences, demonstrating the extraordinary potential of Skype in the classroom.

Abraham Lincoln is one of the most studied figures in American history, but there is still much you may not know about his life. We've scoured the best online resources about Lincoln and unearthed eleven interesting facts.

On May 9, 1994, South Africa's newly elected parliament chose Nelson Mandela to be the first president of the post-apartheid era.

On May 8, 1945, Germany officially ceased military operations, ending the European conflict of World War II and prompting massive celebrations in Allied countries.

On May 8, 1973, members of the militant American Indian Movement who had held the South Dakota hamlet of Wounded Knee surrendered to federal agents after a 10-week standoff.

On May 3, 1988, former Reagan cabinet member Donald Regan claimed in his memoir that first lady Nancy Reagan had used astrological advice to help schedule President Reagan's activities.

On May 3, 1971, authorities in Washington quelled an anti-war protest organized by the Mayday Tribe, which had hoped to shut down the city. About 12,000 protesters were arrested over the course of several days, the largest mass arrest in U.S. history.

On April 20, 1971, in the case of Swann v. Charlotte-Mecklenburg Board of Education, the U.S. Supreme Court upheld the use of busing to achieve racial desegregation in schools.

On April 19, 1995, a truck bomb exploded outside the Alfred P. Murrah Federal Building in Oklahoma City, killing 168 people and injuring 500.

On April 6, 1909, an expedition led by Robert Peary may have reached the North Pole. A second explorer, Frederick Cook, claimed to have reached the pole a year earlier, though there are many doubts over each man’s claim and it is likely that neither actually reached the pole.

On April 5, 1887, teacher Anne Sullivan taught her blind and deaf pupil, Helen Keller, the meaning of the word “water” as spelled out in the manual alphabet.