Assertion: calendar's month | /r/HasProperty | based in numbering years
Facets:
Source sentences:
text: Indian national calendar solar Gregorian-derived 1957 Republic of India Gregorian calendar with months based in traditional Hindu calendars and numbering years based on the Saka era (AD 78).
text: Nanakshahi calendar solar Gregorian-derived 1998 Sikhism Gregorian calendar with months based in traditional Hindu calendars and numbering years based on the era 1469.