Complex sentence: In 1893, New Zealand, then a self-governing British colony, granted adult women the right to vote and the self-governing British colony of South Australia did the same in 1895, and also permitted women to run for office.
Split into simpler sentences: In 1893, New Zealand, then a self-governing British colony, extended the right to vote to all adult women. The self-governing British colony of South Australia did the same in 1895, but also permitted women the right to run for office.