Assertion: gregorian calendar | /r/ObjectUse | used by country
Facets:
value: into the early 1900s
type: TEMPORAL
Source sentences:
text: Although the Gregorian calendar has become the international civil calendar, the Julian calendar was still used by some countries into the early 1900s.
text: January 1: The first day of the civil year in the Gregorian calendar used by most countries.