Complex sentence: For a brief period in the 1790s the British attempted to establish a rival foothold on the offshore island of Bolama, but many of the Manjaco and other communities became French after the abolition of the Slave trade in 1794 and 1848.
Split into simpler sentences: For a brief period in the 1790s the British attempted to establish a rival foothold on the offshore island of Bolama. But many of the Manjaco and other entities became French after the abolition of the Slave trade in 1794 and 1848.