The listing of an airport as open to the public in this directory merely indicates the airport operator's willingness to accommodate transient aircraft, and does not represent that the airport conforms with any Federal or local standards, or that it has been approved for use on the part of the general public.
The Calpulli. After the family, the basic unit of ancient Aztec government was the calpulli. Families didn't individually own land, the land was owned by a group of families, the calpulli. This structure of local government existed long before the Aztec empire. The leadership in the calpulli would be responsible for the basic needs of the group.
At its height, the alliance controlled most of central Mexico as well as some more distant territories within Mesoamerica such as the Xoconochco province, an Aztec exclave near the present-day Guatemalan border. Aztec rule has been described by scholars as hegemonic or indirect. Rulers of conquered cities were left in power so long as they agreed to pay semi-annual tribute to the alliance as well as supplying military support for the Aztec war efforts.