They were considered to be foreigners because their tribes were regarded as separate nations.
The Renaissance paved the way for an age of discovery and exploration. The Renaissance was a time when people started thinking a different way - thinking for themselves. They no longer relied on just the church for information and began to instead refer back to classical times (Greek and Roman). This led to the Scientific Revolution, Age of Discovery, and The Enlightenment.
It motivated them to fight back and not let them be ruled unfairly.
Hope this helps!
The factors that led to the development of Filipino nationalism was basically centered around one: the Spanish rule which existed on the islands for around three centuries. This started in the 1800's and continues on today, as the islands was often under the control of the Spaniards or the United States. Filipino nationalism includes political, social and economic freedom in the country and this was one of the reasons behind the first nationalist revolution in Asia in 1896.
They enjoyed activities and entertainment such as movies, dancing, listening to the radio and to the sounds of Swing bands.