Analysis of information sources in references of the Wikipedia article "First Philippine Republic" in English language version.
[O]n 24 March, Aguinaldo was captured in the mountain region of Palanan, Isabela Province, and on 2 April 1901 he took an oath of allegiance to the United States. On 19 April 1901 he appealed to all Filipinos to accept the sovereignty of the United States. The existence of the revolutionary government came to an end officially when, on 4 July 1901, U.S. Military government ceased to exist in the Philippines.
On 19 April 1901 Aguinaldo issued a farewell proclamation to his people, bringing the republic to an end: ...
Whereas the insurrection against the authority and sovereignty of the United States is now at an end
WHEREAS, Tuesday, April 16, 2002, marks the centennial celebration of the end of the Philippine-American War [and] WHEREAS, the day also marks the day when General Miguel Malvar, a true-blooded Batangueño and the last President of the Philippine Revolutionary Government surrendered to the Americans; ...