All dates in the article are in the Gregorian calendar (unless otherwise stated). The Julian calendar as used in England in 1704 differed by eleven days. Thus, the battle of Blenheim was fought on 13 August (Gregorian calendar) or 2 August (Julian calendar). In this article, 'OS' is used to annotate（英语：annotate） Julian dates with the year adjusted to 1 January. See the article Old Style and New Style dates for a more detailed explanation of the dating issues and conventions.
