Complex sentence: The University of London Institute in Paris was founded in Paris with the help of the British Ambassador in 1894, becoming the British Insitute in Paris shortly after the First World War, and leaving its Sorbonne link to become incorporated into the University of London in 1969.
Split into simpler sentences: The University of London Institute in Paris was founded in Paris with the help of the British Ambassador in 1894, and became the British Insitute in Paris shortly after the First World War. It left its its Sorbonne link to become incorporated into the University of London in 1969.