Complex sentence: The school, as the tenth collegiate, opened its doors on September 8,1964 and since undergone a revitalization program as the Library and the Technical shops have been refurbished and modernized.
Split into simpler sentences: The school, as the tenth collegiate, opened its doors on September 8,1964. Since then, its has undergone an revitalization program as the Library and the Technical shops have been refurbished and modernized.