Complex sentence: The Left Book Club, founded in May 1936, was a key left-wing institution of the late 1930s and 1940s in the United Kingdom set up by Stafford Cripps, Victor Gollancz and John Strachey to revitalise and educate the British Left.
Split into simpler sentences: The Left Book Club, founded in May 1936, was a key left-wing institution of the late 1930s and the 1940s in the United Kingdom. It was set up by Stafford Cripps, Victor Gollancz and John Strachey to revitalise and educate the British Left.