Assertion: boot camp | /r/CapableOf | become popular
Facets:
value: in the 1990s
type: TEMPORAL
Source sentences:
text: When boot camps first became popular, notes Chelliah, they drew almost exclusively from their army derivations.
text: When boot camps first became popular in the 1990s, they mostly focused on military-style treatment.﻿﻿ Teens were yelled at, treated harshly and punished with push-ups or physical discipline.