1823 – the year Jalajala was made into a “pueblo” or town.
1825 – the year Jalajala was separated from the town Pila to become independent, with its ecclesiastical affairs given to the accular clergy.
1853 – Jalajala was incorporated in the newly created Distrito delos Montes de San Mateo and later, into the Distrito-Politico-Militar de Morong.
Peter Vedi – owned the land of Jalajala but abandoned it in 1891 then Jalajala was uncultivated for several years.
January 27, 1897 – Filipino revolutionists entered Jalajala to capture Spanish hacienderos.
August 1, 1898 – people of Jalajala joined the revolutionary government of Emilio Aguinaldo.
Act 946 – After the war, by virtue of this act, Jalajala and Quisao were consolidated with the seat of the municipal government.
Act 1626 – By this act approved on March 27, 1907, Jalajala became an independent municipality from the Municipality of Pililla.
Simeon Perez – the first to be elected as Presidente Municipal in 1907 when Jalajala elected its first town officials held in the first Tuesday of November.
1920 – the land of Jalajala went into publication due to non-payment of land taxes by its previous owner.
Francisco, Marcelo and Bernardo de Borja (from Pateros) – won the bid to own Jalajala, thus becoming the first Filipino owners of Jalajala.
1925 – due to conflict and maltreatment of the land owners, more than half of the tenants transferred in a land in Pililla known then as “Longos”. They named the place barrio Malaya to signify their freedom. But due to an epidemic brought about by non-potable water, many settlers went back to Jalajala.
Paolo – considered by many as the most handsome guy Jalajala ever produced.
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maliit lang ang font kasi nga kodigo, baka makita ni titser errrr...