Help please Who were the Olmecs and what were some things they did/created?The Olmecs had many important contributions. The Olmecs created one the first calendars. They also
have permanent settlements. Finally One of the most extraordinary achievements of the
Olmec was their monumental stone heads, believed to be portraits of their leaders.

What makes fort sill historically unique among other regional military installations? a. it is the site where seven major commanders of us military efforts were trained. b. it houses the largest explosive weapons factory in the united states. c. it specializes in training soldiers to preserve the cultural artifacts of nations invaded by the us military. d. it is the oldest functioning installation in oklahoma.