Evolution of the Philippine flag

"The Flag of the Revolution"

Members of the Katipunan, known as Katipuneros, wanted a flag of their own to symbolize their hopes and aspirations. Their flag was made up of a blood-red rectangular field with the letters KKK at the center. The three Ks stood for the first letters of the society's name. Bonifacio's wife, Gregoria de Jesus, and another Katipunera named Benita Rodriguez, sewed the first Katipunan flag.