Died June 21 1876
https://www.britannica.com/biography/Antonio-Lopez-de-Santa-Anna
Go there has information
He means it's a devotion to a political party. A commitment to some type of purpose. hope this helps!!
The answer is Not 100%, I chose it and got it wrong. I hope that helps a little.
Deal with the wars, religious stuggles, and societal issuses which plague the empire.