Context:
Comet in Moominland (Swedish: "Kometjakten" / "Mumintrollet pa kometjakt" / "Kometen kommer") is the second in Tove Jansson's series of Moomin books. Published in 1946, it marks the first appearance of several main characters, like Snufkin and the Snork Maiden.
Hypothesis: At least two characters debuted in Comet
Yes
Context:
Tango is a ballet made by New York City Ballet co-founder and founding choreographer George Balanchine to Stravinsky's "Tango" (1940) arranged 1953 by the composer. The premiere took place June 10, 1982, as part of City Ballet's Stravinsky Centennial Celebration at the New York State Theater, Lincoln Center.
Hypothesis: George Balanchine co-founded the New York city Ballet before 1960.
Yes
Context:
The Ohio Valley Siouan, or Southeastern Siouan, languages are a subfamily of the Western Siouan languages, far to the east and south of the Mississippi River. The group has Ofo and Biloxi, in the Lower Mississippi River valley, and Tutelo, historically spoken in Virginia, near the territory of the Catawban languages. All of the languages are now extinct.
Hypothesis: The Ohio Valley Siouan languages currently do not have any speakers.
Yes