Complex sentence: By the 1780s he had turned primarily to painting, leaving behind a school of art that grew to dominate ukiyo-e in the 19th century, with artists such as Utamaro, Hiroshige, and Kuniyoshi.
Split into simpler sentences: By the 1780s he had turned primarily to painting. The Utagawa school of art grew to dominate ukiyo-e in the 19th century, with artists such as Utamaro, Hiroshige, and Kuniyoshi.