1658. Charles County created by order in council.
1662. St. Ignatius Catholic Church near Port Tobacco, oldest continuously active parish in nation.
1680. Zekiah Fort established east of present-day Waldorf near Piney Branch by Gov. Charles Calvert for protection of Piscataways from Susquehannocks and Senecas.
1695. Prince George's County erected from Charles and Calvert counties (Chapter 13, Acts of 1695, May session)
1715, April 3. John Hanson (1715-1783), first President of United States in Congress Assembled elected under Articles of Confederation, born near Port Tobacco.
1723. Daniel of St. Thomas Jenifer (1723-1790), signer of U.S. Constitution, born near Port Tobacco.
1732. William Smallwood (1732-1792), Governor of Maryland, born at “Smallwood’s Retreat” near Marbury.
1743. Thomas Stone (1743-1787), signer of Declaration of Independence, born at "Poynton Manor".
1750. John Hoskins Stone (1750-1804), Governor of Maryland, born in Charles County.
1751. Benjamin Stoddert (1751-1813), U.S. Secretary of the Navy, born in Charles County.
1789, June 15. Josiah Henson, author, abolitionist, and minister, born in Charles County.
1809, Sept. 27. Raphael Semmes (1809-1877), U.S. Naval officer and later Confederate Naval officer, born in Charles County.
1814, Aug. 19. British fleet from Bemuda sailed up Patuxent River.
1814, Aug. 21. British troops, under Gen. Robert Ross, disembarked at Benedict for attack on Washington, DC.
1814, Aug. 27. British troops re-embarked on British warships at Benedict.
1849. Josiah Henson (1789-1883), former Charles County slave, published his Life.
1861, Oct.-1862, March. Gen. Joseph Hooker's 12,000 Union troops encamped at Indian Head.
1861, Oct.-1862, March. Gen. Daniel E. Sickles' Union Excelsior Brigade headquartered at Nanjemoy.
1863, Aug. Camp Stanton established at Benedict to recruit and train African Americans for Union Army.
1865, April 14. John Wilkes Booth (1838-1865) assassinated President Abraham Lincoln, escaped with accomplice, David E. Herold (1842-1865) through Prince George's and Charles counties on route to Virginia.
1865, April 21. John Wilkes Booth and David E. Herold rowed from near Newburg across Potomac River to Virginia.
1888. La Plata incorporated.
1888. Port Tobacco incorporated.
1895, June 4. Charles County seat moved from Port Tobacco to La Plata.
1896. Courthouse completed at La Plata.
1903, Sept. McDonough Institute opened, first school in County to offer high school education.
1909, April 6. Matthew Henson (1866-1955), of Charles County, reached North Pole with Robert Peary.
1920. Indian Head incorporated.
1924. First Charles County Fair held at Chapel Point.
1926, Nov. 9. Tornado destroyed La Plata elementary school.
1940, Dec. U.S. Route 301, a shorter north - south road through Maryland and Virginia was completed.
1940, Dec. Potomac River Toll Bridge opened, linking County to Virginia.
1949. Slot machines allowed by law in Charles County (Chapter 678, Acts of 1949).
1958. Charles County Community College opened.
1963. Legislation passed to outlaw slot-machine gambling.
1964, Dec. 6. Tri-County Council for Southern Maryland created.
1967. Potomac River Bridge renamed Governor Harry W. Nice Memorial Bridge.
2000. College of Southern Maryland established at La Plata.
2002, April 28. Tornado ripped through La Plata.
2004, March 2. Electronic voting system used during primary elections at polling places and for absentee ballots in all counties and Baltimore City.
2008, May 2. Southern Maryland Blue Crabs began playing minor league baseball at Waldorf.
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