1. April 3, 1956- Senate Bill 438 introduced in Senate Comm. on Education
2. April 17, 1956- Senator Jose P. Laurel sponsored the bill
3. April 23, 1956- Debate between Laurel & Recto vs. Cuenco, Rodrigo, Rosales
4. April 19, 1956- House Bill 5561 introduced in Congress by Jacobo Z. Gonzales
5. May 9, 1956- Debate in Congress
6. June 12, 1956- Rizal Bill approved into Law as RA 1425 signed by President Ramon Magsaysay