About July 18
July 18, 2025 is the 199th day of the year 2025 in the Gregorian calendar. There are 166 days remaining until the end of this year. The day of the week is Friday.
You can browse the full year calendar in case you need it.
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Cancer is the sun sign of a person born on this day. Ruby is the modern birthstone for this month. Ruby is the mystical birthstone from Tibetan origin that dates back over a thousand years.
According to the lunisolar Chinese calendar, there are 214 days remaining before the start of the next Chinese New Year.
What Happened On July 18
- 390 BCE –Roman-Gaulish Wars: Battle of the Allia – a Roman army is defeated by raiding Gauls, leading to the subsequent sacking of Rome.
- 362 –Roman-Persian Wars: Emperor Julian arrives at Antioch with a Roman expeditionary force (60,000 men) and stays there for nine months to launch a campaign against the Persian Empire.
- 1334 –The bishop of Florence blesses the first foundation stone for the new campanile (bell tower) of the Florence Cathedral, designed by the artist Giotto di Bondone.
- 1656 –Polish-Lithuanian forces clash with Sweden and its Brandenburg allies in the start of what is to be known as The Battle of Warsaw which ends in a decisive Swedish victory.
- 1857 –Louis Faidherbe, French governor of Senegal, arrives to relieve French forces at Kayes, effectively ending El Hajj Umar Tall’s war against the French.
- 1862 –First ascent of Dent Blanche, one of the highest summits in the Alps.
- 1863 –American Civil War: Battle of Fort Wagner/Morris Island – the first formal African American military unit, the 54th Massachusetts Volunteer Infantry, fails in their assault on Confederate-held Battery Wagner.
- 1870 –The First Vatican Council decrees the dogma of papal infallibility.
- 1914 –The U.S. Congress forms the Aviation Section, U.S. Signal Corps, giving definite status to aircraft within the U.S. Army for the first time.
- 1925 –Adolf Hitler publishes his personal manifesto Mein Kampf.
- 1942 –World War II: the Germans test fly the Messerschmitt Me-262 using only its jet engines for the first time.
- 1944 –World War II: Hideki Tojo resigns as Prime Minister of Japan due to numerous setbacks in the war effort.
- 1955 –The first Disneyland theme park, in Anaheim, California, officially opens to the public.
- 1966 –Human spaceflight: Gemini 10 is launched from Cape Kennedy on a 70-hour mission that includes docking with an orbiting Agena target vehicle.
- 1968 –The Intel Corporation is founded in Santa Clara, California.
- 1976 –Nadia Comăneci became the first person in Olympic Games history to score a perfect 10 in gymnastics at the 1976 Summer Olympics.
- 1982 –268 campesinos (“peasants” or “country people”) are slain in the Plan de Sánchez massacre in Ríos Montt’s Guatemala.
- 1986 –A tornado is broadcast live on KARE television in Minnesota when the station’s helicopter pilot makes a chance encounter.
- 1992 –The ten victims of the La Cantuta massacre disappear from their university in Lima.
- 1996 –Battle of Mullaitivu. The Liberation Tigers of Tamil Eelam capture the Sri Lanka Army’s base, killing over 1200 Army soldiers.
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