Assertion: rhythm method | /r/HasProperty | a form of birth control
Facets:
value: since at least 388 ce
type: TEMPORAL
Source sentences:
text: The rhythm method has been a form of birth control since at least 388 CE, where it was mentioned by St. Augustine in a letter.
text: The rhythm method, or natural family planning, is a form of birth control in which the days between your menstrual cycles are counted.
text: The rhythm method, or natural family planning, is a form of birth control in which the days between your menstrual cycles are counted.