George Ekem Fergusion was a Ghanaian colonial agent who was instrumental in convincing local chiefs to sign treaties of friendship with the British. He was later (1897) killed by slave raiders, but his tomb preserved in Wa

Gbollu, 70km north of Wa, was part of the slave route. In the 1`9th century Gbollu Koro Liman built the wall as part of its defence against the slavers