Jose Abad Santos Day is observed on May 7 in the Philippines to honor Jose Abad Santos, a former Chief Justice known for his patriotism and bravery during World War II. Santos refused to flee the country when invited by President Manuel Quezon and declined to cooperate with Japanese forces during his capture, which ultimately led to his execution. The day is recognized as a special non-working holiday in Pampanga, where citizens, schools, and civic organizations are required to observe it with appropriate ceremonies. Santos is also commemorated on the one thousand peso bill alongside other national heroes for his martyrdom and resistance against the Japanese occupation. The observance serves as a reminder of his dedication to the nation and his ultimate sacrifice.