Monte Generoso Observatory was created in 1996.
"Generoso" means generous. You can identify the definition of "generoso" through its word, or by just saying it. That's an easy way to memorize what "generoso" means.
Haleakala Observatory was created in 1961.
Dearborn Observatory was created in 1889.
Kiso Observatory was created in 1974.
Stellafane Observatory was created in 1924.
Steward Observatory was created in 1916.
Union Observatory was created in 1903.
Erbil Observatory was created in 1973.
Sherwood Observatory was created in 1970.
McKim Observatory was created in 1884.
Belogradchik Observatory was created in 1961.
Winfree Observatory was created in 1900.