Pia Cayetano is the youngest woman elected senator in Philippine history at the age of 38.
Tecla San Andres Ziga was the first woman in the Philippines to top the bar examinations for law degree graduates.
[2] Miriam Defensor Santiago was the first Filipino and first Asian from a developing country to be elected as a judge of the International Criminal Court (ICC) on December 12, 2011.
Risa Hontiveros is the Philippines' first socialist woman senator, representing the Akbayan party.
The 1940 Philippine constitutional plebiscites restored, among other things, the bicameral Congress, and the Senate was first elected in 1941.