About May 18

May 18, 2025 is the 138th day of the year 2025 in the Gregorian calendar. There are 227 days remaining until the end of this year. The day of the week is Sunday.

You can browse the full year calendar in case you need it.

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Taurus is the sun sign of a person born on this day. Emerald is the modern birthstone for this month. Sapphire is the mystical birthstone from Tibetan origin that dates back over a thousand years.

According to the lunisolar Chinese calendar, there are 275 days remaining before the start of the next Chinese New Year.

What Happened On May 18

  • 1152 –
    Henry II of England marries Eleanor of Aquitaine.
  • 1268 –
    The Principality of Antioch, a crusader state, falls to the Mamluk Sultan Baibars in the Battle of Antioch.
  • 1498 –
    Vasco da Gama reaches the port of Calicut, India.
  • 1593 –
    Playwright Thomas Kyd’s accusations of heresy lead to an arrest warrant for Christopher Marlowe.
  • 1756 –
    The Seven Years’ War begins when Great Britain declares war on France.
  • 1763 –
    Fire destroys a large part of Montreal, Quebec.
  • 1811 –
    Battle of Las Piedras: The first great military triumph of the revolution of the Río de la Plata in Uruguay led by Jose Artigas.
  • 1863 –
    American Civil War: The Siege of Vicksburg begins.
  • 1896 –
    The United States Supreme Court rules in Plessy v. Ferguson that the “separate but equal” doctrine is constitutional.
  • 1900 –
    The United Kingdom proclaims a protectorate over Tonga.
  • 1933 –
    New Deal: President Franklin D. Roosevelt signs an act creating the Tennessee Valley Authority.
  • 1944 –
    World War II: Battle of Monte Cassino – Conclusion after seven days of the fourth battle as German paratroopers evacuate Monte Cassino.
  • 1948 –
    The First Legislative Yuan of the Republic of China officially convenes in Nanking.
  • 1958 –
    An F-104 Starfighter sets a world speed record of 1,404.19 mph (2,259.82 km/h).
  • 1959 –
    Launch of the National Liberation Committee of Côte d'Ivoire in Conakry, Guinea.
  • 1969 –
    Apollo program: Apollo 10 is launched.
  • 1974 –
    Completion of the Warsaw radio mast, the tallest construction ever built at the time. It collapsed on August 8, 1991.
  • 1980 –
    Gwangju Massacre: students in Gwangju, South Korea begin demonstrations calling for democratic reforms.
  • 2006 –
    The post Loktantra Andolan government passes a landmark bill curtailing the power of the monarchy and making Nepal a secular country.
  • 2009 –
    Sri Lankan Civil War: The LTTE are defeated by the Sri Lankan government, ending almost 26 years of fighting between the two sides.

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