A 150th anniversary.
"During an event to celebrate the Constitution's Sesquicentennial in 1937, Harry F Wilhelm recited the entire document through the newly added 21st Amendment from memory. He then obtained a job in the Sesquicentennial mailroom!" - from the booklet titled The U.S. Constitution and Fascinating Facts About It. Published by Oak Hill Publishing Company, Naperville, Illinois.
200 years.
4 years
2 years 2 terms
58 years
150 years.
Sesquicentennial refers to the 150 years anniversary.
Every 150 years a sesquicentennial occurs.
150 years (but spelling should be SESQUICENTENNIAL)
"Sesquicentennial" (another syllable there--"cent") means 150 years.
sesquicentennial
sesquicentennial
One hundred fifty years. The prefix "sesqui" means "one and a half". "Centennial" means "one hundred years". America's sesquicentennial was on July 4, 1926.
Every 150 years.
Sesquicentennial means 150 year anniversary. The Signing of the treaty was in 1840. 1840 + 150 = 1990
150 years old
In 1990. Its sesquicentennial (150 years) will be in 2040.