July 25 – History, Events, Births, Deaths Holidays and Observances On This Day

July 25 in History 306 – Constantine I is proclaimed Roman emperor by his troops. 315 – The Arch of Constantine is completed near the Colosseum in Rome to commemorate Constantine I’s victory over Maxentius at the Milvian Bridge. 677 – Climax of the Siege of Thessalonica by the Slavs in a three-day assault on the…

July 9- History, Events, Births, Deaths Holidays and Observances On This Day

July 9 in History 491 – Odoacer makes a night assault with his Heruli guardsmen, engaging Theoderic the Great in Ad Pinetam. Both sides suffer heavy losses, but in the end Theodoric forces Odoacer back into Ravenna. 551 – A major earthquake strikes Beirut, triggering a devastating tsunami that affected the…

April 7 – History, Events, Births, Deaths, Holidays and Observances On This Day

April 7 in History 451 – Attila the Hun sacks the town of Metz and attacks other cities in Gaul. 529 – First draft of the Corpus Juris Civilis (a fundamental work in jurisprudence) is issued by Eastern Roman Emperor Justinian I. 611 – Maya king Uneh Chan of Calakmul sacks rival city-state Palenque in southern Mexico. 1141 – Empress Matilda became…

Units of Measurement

?• 1 horsepower is 745.7 watts ?• 1 horsepower = work equal to lifting 550 lbs of weight to one foot for one second ?• 1 calorie is equal to 4.2 Joules ?• 1 barrel is equal to 159 liters…