Complex sentence: They maintained a ceremonial ground and played stick ball against the Alabama-Quassarte Tribal Town, but their ground was put to sleep in 1912 when ethnologist John R. Swanton visited the town.
Split into simpler sentences: They maintained a ceremonial ground and played stick ball against the Alabama-Quassarte Tribal Town. Their ground was put to sleep in 1912 when ethnologist John R. Swanton visited the town.