If you don’t already know about Wikipedia, The Free Encyclopedia, I highly recommend it. Go to http://www.wikipedia.org/ and click on the language you prefer. Then you can search for just about anything. There you can find factoids like Filipino-American Friendship Day:

Filipino-American Friendship Day, July 4, is a day in the Philippines designated by President Diosdado Macapagal to commemorate the liberation of the islands by joint Filipino and American forces from the Japanese occupation at the end of World War II, in 1946. Originally, the islands’ Independence day, Araw ng Kalayaan, was on this day but Macapagal moved it to June 12. Filipino-American Friendship Day was created in its place, July 4 being the United States’ Independence Day.