1791
Events
January 2, 1791

Blockhouse at Big Bottom
Big Bottom massacre in the Ohio Country, marking the beginning of the Northwest Indian War
The Big Bottom massacre occurred on January 2, 1791, near present-day Stockport now in Morgan County, Ohio, United States. Delaware and Wyandot Indians surprised a new settlement at the edge of the flood plain, or "bottom" land of the Muskingum River; they stormed the blockhouse and killed eleven men, one woman, and two children. Three settlers were captured while four others escaped into the woods.
Big Bottom massacre,
Northwest Indian War
March 2, 1791
Long-distance communication speeds up with the unveiling of a semaphore machine in Paris.
A semaphore telegraph, optical telegraph, shutter telegraph chain, Chappe telegraph, or Napoleonic semaphore is a system of conveying information by means of visual signals, using towers with pivoting shutters, also known as blades or paddles. Information is encoded by the position of the mechanical elements; it is read when the shutter is in a fixed position. These systems were popular in the late 18th to early 19th century. In modern usage, "semaphore line" and "optical telegraph" may refer to a relay system using flag semaphore, and "optical telegraph" may refer to a heliograph (optical telegraphy using mirror-directed sunlight reflections).
semaphore,
semaphore line,
Paris
March 4, 1791

Seal of Vermont
Vermont is admitted to the U.S. as the fourteenth state.
Vermont is a state in the New England region of the northeastern United States of America. Vermont is the 6th least extensive and the 2nd least populous of the 50 United States. It is the only New England state not bordering the Atlantic Ocean. Lake Champlain forms half of Vermont's western border, which it shares with the state of New York. The Green Mountains are within the state. Vermont is bordered by Massachusetts to the south, New Hampshire to the east, New York to the west, and the Canadian province of Quebec to the north.
Vermont,
United States
Births
September 5, 1791
Giacomo Meyerbeer was a noted German opera composer, and the first great exponent of "grand opera." At his peak in the 1830s and 1840s, he was the most famous and successful composer of opera in Europe, yet he is rarely performed today.
Deaths
December 5, 1791
Wolfgang Amadeus Mozart was a prolific and influential composer of the Classical era. He composed over 600 works, many acknowledged as pinnacles of symphonic, concertante, chamber, piano, operatic, and choral music. He is among the most enduringly popular of classical composers.