In a bind, need help with essay.

Trace the evoluion of your, or another chosen, profession, field of study, or brace of service, during the eras of American History. This means looking at the technology or opportunity that would evolve from as far back as the 1860s into what is used today. Be sure to follow the themes of the Market, Transportation, and Technological Revolutions and describe how necessity would breed innovation; also, highlight how events, like reform, war, economics, and progress may have directly impacted your profession.

Paper needs to be a minimum of 500 words, a minimum of two (2) reputable sources must be used, cited, and referenced-only one of which can be assigned book (text or source).  Non-plagerised paper please

Encyclopedias (online or print), message boards, or any source that can be amended without educated review are not considered appropriate.  APA format please.