Using abbreviations for people or countries, (i.e. JFK, FDR, LBJ, USSR) are fine, as long as they are properly introduced before (i.e. John Fitzgerald Kennedy is JFK).
Using abbreviations for governmental agencies is ok, but cannot be used for laws and documents (i.e. AOC, DOI).
NO apostrophes unless it is describing something (i.e. 1960’s culture, 1980’s government
Be consistent. If using 1960s, then stick with the 4-digit year; if using the 60s, then stick with the 2-digit year.
Do not reference yourself in your essay: I, Us, We, Our, etc.
Do not use contractions.
Avoid colloquialisms/ slang/ familiarity.
The first time writing about a person, using their entire name is important; however, from there on out, using the last name only is sufficient.
Do not use the first name of a person unless you know them personally.
DO NOT USE QUOTATIONS IN ANY HISTORICAL WRITING unless absolutely necessary.
If using a quotation will help your analysis, limit it to a phrase. No full sentences.
Do not use rhetorical questions. You already have a question to answer; what is the point of bringing in more questions? It is a conversational/informal style of writing.
Historical writers write predominantly in the past tense. Beware of Passive Voice! Be ACTIVE in your sentences.
Instead of: The Constitution was written mostly by James Madison.
Use this: James Madison wrote most of the Constitution.