Complex sentence: In February 1848 the Katerinoslav Public Museum was founded on the initiative of I. Grakhov, a principal of local gymnasium, and A. Fabr, a governor of Katerinoslav (modern Dnipropetrovsk).
Split into simpler sentences: In February 1848 the Katerinoslav Public Museum was founded. It was established on the initiative of I. Grakhov, a principal of local gymnasium, and A. Fabr, a governor of Katerinoslav (modern Dnipropetrovsk).