Around 1878: The Santa Fe railway began a maildrop to the area.  
1882: Ms. S. H. Brown started the first school on Gordon Street.
1910: The 2-story high school and grammar building was built - “The Red Brick Building.”
1928: The main (Senior) building was added.
1936 to 1938: Several new buildings were added.
1938: The Red Brick Building was razed.
1938: Gym II was built.
1946: Memorial stadium was built.
1949: The Junior college was established.
1951: Gym I was built.
1956: The Junior College was built.
1958: The Senior tree (Big Oak)  was made with donations from the AHS Seniors.
1963: The Junior College came down.
1968: Gym III was added.
1975: The Vocational Building was added and the Ag Farm was acquired.
1988: A new library was added.
1988 to 1996: New covered walkways were being added.
1996: The north annex building, which was once Alvin Junior High, was demolished in July.
1996: Major renovations and construction began with the addition of the Kee Building.
1997: The Meyers Science building was opened.
1998: The Main building came down.