Santa Fe, New Mexico is where I think it ended
The best answer is: the economic globalization!
let's look at other options:
Capitalism is the system in which the goods are privately owned, but capitalism can be realized on a local scale and does not have to be global.
Trade agreement (even on a global scale: world trade) ake the exchange of goods easier, but it does not yet make their production truly international.
Nationalism can inspire people to pursue self-rule when a nation is not independent such as in the case of the Kurdish people. however, typically a nation is independent already.
I would say that a greater cultural awareness is the best a answer- it's a positive factor so it can be understood as the nation's growth.
Nationalism can also lead to wars, but that's not a growth
