Cobbler Creek Recreation Park is a 266 ha protected area located in South Australia about 19 km north of the Adelaide city centre in the suburb of Gulfview Heights. Originally part of the lands of the Kaurna aboriginal people, it was farmed from European settlement of South Australia until the declaration of the park in 1989.
The park declaration happened more than 57 years ago.
1989 was not more than 57 years ago. It's difficult because the system is bad at comparing dates when the statement is definitely incorrect.
( z1 declare :ARG1 ( z2 park ) :time ( z3 before :op ( z4 now ) :quant ( z5 more-than :op ( z6 temporal-quantity :quant 57 :unit ( z7 year ) ) ) ) )