Mexican nationalism is a cultural and political movement that emphasizes pride in Mexican identity, history, and sovereignty, emerging prominently in the early 19th century as Mexico sought independence from Spanish colonial rule. This sentiment fueled a sense of unity among diverse groups within Mexico, leading to the pursuit of independence and the formation of a distinct national identity, particularly after the successful revolution in 1821. It shaped political discourse and policies, impacting regions like New Mexico as they navigated the shifting dynamics of power and cultural identity.