Castilian dialect, Spanish Castellano, a dialect of the Spanish language (q.v.), the basis of modern standard Spanish. Originally the local dialect of Cantabria in north central Spain, Castilian spread to Castile. After the merger of the kingdoms of Castile, Leon, and Aragon in the late 15th century, it became the standard language of all Spain and in the following centuries the language also of Spanish America.
All of the above
1. names of places: While i'm not sure about this one, i know that areas that used to be under Spanish control (South-West) were part of Mexico before the Texas Independence, which means the place has received influence
2. Television: As seen today, there are Spanish-speaking channels on television even inside the US, provided by Cable and other companies geared towards spanish speakers
3. music: As seen today, there are Spanish songs that are played on the radio, and is becoming increasingly popular with spanish-speaking Americans.
4. Food: Especially in the South-western area, Mexican & Spanish food can be found, from tacos, to tamales, to other kinds of food.
hope this helps
Kine master for mobile. I use it a lot.
Check for asentós and how the word is pronounced
