<li>Months are to be spelled out in the body of the article, but abbreviated in notes and in genealogical tables.</li>
<li>Centuries are to be styled "“20<sup>th</sup> century"”.</li>
<li>Calendar designation shall be either "“BC" ” or "“AD" ” whenever there may be ambiguity — AD 1957 or 3400 BC, but 2 January 201 AD. Articles set entirely in one era may omit these.</li>
<li>Acronyms composed of initials shall omit periods — thus USA, FAS, PhD.</li>
<li>Notes shall be numbered sequentially throughout each article. Multi-part articles should use continuing numbering when all parts are by the same author. Occasional exceptions apply, as with exceedingly long articles like the Germond series.</li>
<li>If footnotes are used with a Bibliography, the footnotes shall be in brief format, "“Author, Short title, vol:page" ” with full details in the Bibliography. Note that this approach works poorly with web sources, and is discouraged when these are used.</li>
<li>Notes are referenced by numerals within square brackets in text — [1], not superscript <sup>1</sup>.</li>