Assertion: market wide circuit breaker | /r/HasProperty | introduced in the u.s.
Facets:
value: after black monday
type: TEMPORAL
Source sentences:
text: The first market-wide circuit breakers were introduced in the U.S. after Black Monday in 1987 when the Dow Jones Industrial Average (DJIA)Dow Jones Industrial Average (DJIA)The Dow Jones Industrial Average (DJIA), also commonly referred to as "the Dow Jones” or simply "the Dow", is one of the most popular and widely-recognized stock market indices declined by 22% in one day.