Complex sentence: The Golly pendant with chain was introduced by popular demand in 1956 and in the 1970's, the design of all Gollies changed from the old Golly with "pop eyes" to the present day Golly with eyes looking to the left.
Split into simpler sentences: The Golly pendant with chain was introduced by popular demand in 1956. In the 1970's, the design of all Gollies changed from the old Golly with "pop eyes" to the present day Golly with eyes looking to the left.