As of the start of 1807, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923. ... Wikimedia Commons has media related to 1807.

Learn about 36 famous, scandalous and important events that happened in 1807 or search by date or keyword.

President Thomas Jefferson receives a subpoena to testify in the treason trial of his former vice president, Aaron Burr, on June 13, 1807. In the subpoena, Burr asked Jefferson to produce ...

Jan 23, 2026 · The Insurrection Act is a U.S. federal law passed in 1807 that originally expanded the U.S. president’s authority to employ state militias to repel invasions or to enforce federal laws.

What happened in the year 1807 in history? Famous historical events that shook and changed the world. Discover events in 1807.

On March 3, 1807, President Thomas Jefferson put his signature on the law known as the Insurrection Act. Here is the original language of the Act signed by Jefferson: An Act authorizing the employment …

Events from the year 1807 in the United States. President: Thomas Jefferson (DR-VA) Vice President: George Clinton (DR-NY) Chief Justice: John Marshall (VA) Speaker of the House of …

Jan 20, 2025 · The Insurrection Act of 1807 is one of a series of laws that Congress has passed to allow the president to deploy the National Guard or federal armed forces to deal with “unlawful …

In 1807, President Thomas Jefferson and Congress faced a new threat: the alleged treasonous conspiracy of former Vice President Aaron Burr. Fearing Burr might try to carve out his own empire in …

Article 1, Section 9 of the U.S. Constitution declared that “Migration or Importation of such Persons as any of the States now existing shall think proper to admit,” meaning the slave trade could not be …