On This Day - July 18th
• 477 BC – Battle of the Cremera as part of the Roman–Etruscan Wars. Veii ambushes and defeats the Roman army.
• 452 – Sack of Aquileia: After an earlier defeat on the Catalaunian Plains, Attila lays siege to the metropolis of Aquileia and eventually destroys it.
1290 – King Edward I of England issues the Edict of Expulsion, banishing all Jews (numbering about 16,000) from England
• 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.
• 1555 – The College of Arms is reincorporated by Royal charter signed by Queen Mary I of England and King Philip II of Spain.
• 1809 - Crime - Judge sentences two Montréal women to 25 lashes for disorderly conduct.
• 1813 - War of 1812 - Joseph Willcocks, an Upper Canada MLA who had offered his services to the Americans at Fort George on July 1 and had received a commission as Major in the United States Army, musters a force called the Canadian Volunteers; that autumn, they will begin a reign of terror in the Niagara region
• War of 1812 - Burning of St. David's - American troops force back the 1st Lincoln Militia; burn all 40 houses and businesses in St. David's, near Queenston.
• 1818 - Disaster - Grasshoppers plague Red River Colony, hiding the sun and devouring everything green; staple potato crop of settlers and livestock completely destroyed in just a few minutes
• 1841 – Coronation of Emperor Pedro II of Brazil.
• 1862 – First ascent of Dent Blanche, one of the highest summits in the Alps.
• 1870 – The First Vatican Council decrees the dogma of papal infallibility.
• 1881 - Sitting Bull and about 200 Sioux cross the Saskatchewan border and surrender to the US Army at Fort Buford, Dakota Territory, after living in Canada for over four years
• 1945 - World War II - Royal Canadian Navy ammunition barge catches fire in Bedford Basin; the magazine explodes for 24 hours causing evacuation of half the city's population; $4 million damage but no loss of life. Halifax, Nova Scotia
• 1970 - Baseball - Willie Mays becomes the 10th major league player to get career hit number 3,000, off Mike Wegener in the second inning of the San Francisco Giants' 10-1 victory over the Montréal Expos
• 1976 Montréal Olympics - Romanian gymnast Nadia Comaneci, age 14, performing on the uneven parallel bars, scores the First perfect 10 in Olympic gymnastics history. Nadia will go on to collect seven perfect scores, three gold medals, a silver and a bronze; she will also win two gold and two silver medals in the 1980 Olympic games. Montréal, Québec
• 1981 - Music - Canadian blues artist Rick James' single "Give It To Me Baby" peaks at #40 on the Billboard pop singles chart.
• 1992 – A picture of Les Horribles Cernettes was taken, which became the first ever photo posted to the World Wide Web.
• 1993 - Auto Racing - Paul Tracey wins the Molson Indy in Toronto; first Canadian to win this race.
• 1995 Saskatchewan Court of Appeal upholds the conviction of Robert Latimer for killing his disabled daughter. Regina
• 1996 – Storms provoke severe flooding on the Saguenay River, beginning one of Quebec's costliest natural disasters ever.
• 2013 – The Government of Detroit, with up to $20 billion in debt, files for the largest municipal bankruptcy in U.S. history.
2014 - Football - The Ottawa Redblacks beat the Toronto Argonauts 18-17 on a last minute field goal in n their home opener; marks the return of the CFL to Ottawa after the collapse of the Roughriders in November 2005
• Constitution Day (Uruguay)
• Hot Dog Day
• Caviar Day
• Mandela Day