However , his shipyard project for the building of sailing ships for the transport of Black African slaves from Sudan to Egypt was unsuccessful .
Abidin Bey 's taxation system was regarded as just and it contributed to the reduction of revolt risk in the province .
Abidin Bey 's shipyard project for the building of sailing ships for the transport of Black African slaves from Sudan to Egypt was unsuccessful .
Abidin Bey 's taxation system was regarded as just and it contributed to the reduction of revolt risk in the province .