Assertion: downtown's population | /r/CapableOf | build firewall
Facets:
Source sentences:
text: Others later traveled to Oklahoma for the land rushes in 1889 through 1891 and continued in the years leading to 1907, the year Oklahoma became a state, hoping that a majority-black population could build a firewall against further extension of the system of racial degradation and segregation known as Jim Crow.