On this day, April 25, in 1898 the US declared war on Spain. This so-called Spanish-American War paved the way for the US occupation of the Philippines.
The official calendar of the Republic of the Philippines: an almanac of Philippine commemorations enlivened with illustrations and information. –Manila: Presidential Communications Development and Strategic Planning Office, [2014].
On this day in 1859, the digging of the Suez Canal began. It ended 10 years later.
https://www.britannica.com/on-this-day/April-25
On this day in 1983, Pioneer 10 crossed the orbit of Pluto before finally exiting the solar system.
https://todayinsci.com/4/4_25.htm
Today, April 25 is World Malaria Day.
You may want to read: