As of the start of 1800, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.

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May 2, 2025 · October 16, 1859: Abolitionist John Brown (1800–1859) leads a raid on Harpers Ferry, Virginia, hoping to initiate a revolt of enslaved people. This revolt would put the U.S. on the path to war.

United States presidential election of 1800, American presidential election held in 1800, in which Democratic-Republican Thomas Jefferson was elected as the country’s third president after …

In the early 1800s, the world witnessed significant changes and events that shaped the course of history. The Industrial Revolution was in full swing, transforming societies from agrarian-based …

Historical events from year 1800. Learn about 37 famous, scandalous and important events that happened in 1800 or search by date or keyword.

Mar 22, 2023 · The 1800s in America, also known as the 19th century, was a period of significant growth and transformation in American history. This century saw major changes in the country’s politics, …

November 1, 1800 - U.S. President John Adams is the first President to live in the White House, then known as the Executive Mansion and sixteen days later, the United States Congress holds its first …

On November 1, 1800, President John Adams, in the last year of his only term as president, moved into the newly constructed President’s House, the original name for what is known today as the...

From 1790 onwards, work began to construct new buildings at the site of the Washington D.C. city. In 1800, President John Adams took up his seat at the White House in Washington D.C. At the same …