noun, plural agencies. 1. an organization, company, or bureau that provides some service for another: a welfare agency. 2. a company having a franchise to represent another. 3. a governmental bureau, or an office that represents it.
Causeways and Canals. Early on in the history of the city the Aztecs built causeways and canals for transportation to and from the city. A causeway is a raised road that allowed the people to easily travel over the swampy and wet areas. There were three major causeways that led from the island city to the mainland.
1. AD 1325â1521 Invading Aztec tribes ended the ruling Toltec power and in 1325 founded TenochtitlÃ¡n (now Mexico City). Aztecs were Indians rich with gold and silver, and medicinal skills. They composed poetry and music. Their state was militaristic, with a large, well-equipped army.