Simplify the following text for a Grade 10 native English-speaking person.
Original: Indicentally , during JosÃ Rizal 's birth anniversity on June 19 , 1965 , the final bill entitled An Act Authorizing the City of Manila to Establish and Operate the University of the City of Manila and for Other Purposes , was signed into law by President Diosdado P. Macapagal , in a signing ceremony in MalacaÃ an Palace .
Simplified: On June 19 , 1965 , the final bill with the title - `` An Act Authorizing the City of Manila to Establish and Operate the University of the City of Manila and for Other Purposes '' - was signed into law by President Diosdado P. Macapacal in a signing ceremony at MalacaÃ ang Palace .