Complex sentence: The group was formed in 1970, when keyboardist Keith Emerson left The Nice to form ELP to 1973, when he teamed up again with The Nice drummer Brian "Blinky" Davison to form Refugee with Patrick Moraz.
Split into simpler sentences: The group was formed in 1970, when keyboardist Keith Emerson left The Nice to form ELP. In 1973, Jackson teamed up again with The Nice drummer Brian "Blinky" Davison to form Refugee with Patrick Moraz.