Professor Popper's Problem was created in 1974.
The duration of Professor Popper's Problem is 1.52 hours.
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Party poppers were invented in the early 20th century, with the specific date of invention being unclear. They were originally created as a safe alternative to traditional fireworks for celebrations and events.
Professor Power was created in 1982.
Professor Chronotis was created in 1980.
Professor Phobos was created in 1981.
Professor Ojo was created in 1977.
Professor Pyg was created in 2007.
Professor Ivo was created in 1960.
Professor Bobo was created in 1997.
Professor Milo was created in 1957.