The united provinces of central america was established after central america seceded from what?

The United Provinces of Central America was established after Central America seceded from

Mexico

seceded means to withdraw or break apart

Explanation:

In 1823, Central America broke away from Mexico, and the United Provinces of Central America was established. The union was later dissolved, and Guatemala, Honduras, Nicaragua, El Salvador, and Costa Rica became independent republics.

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof