Complex sentence: In 1965 the municipal borough was abolished by the London Government Act 1963 and its former area transferred to Greater London from Essex to be combined with that of other districts to form the present-day London Borough of Waltham Forest.
Split into simpler sentences: In 1965 the municipal borough was abolished by the London Government Act 1963 and its former area transferred to Greater London from Essex. Its former area was combined with parts of other districts to form the present-day London Borough of Waltham Forest.