Complex sentence: Gerhard Friedrich Müller (October 29,1705 in Herford--October 22,1783 in Moscow) was a historian and pioneer ethnologist who was invited to St. Petersburg in 1725 to co-found the Imperial Academy of Sciences.
Split into simpler sentences: Gerhard Friedrich Müller (October 29,1705 in Herford--October 22,1783 in Moscow) was a historian and pioneer ethnologist. In 1725, he was invited to St. Petersburg to co-found the Imperial Academy of Sciences.