Were the british called Yankees in 1770s?

No, the term "Yankee" was not commonly used to refer to the British in the 1770s. Instead, it was primarily used to describe American colonists, particularly those from New England. The term became more widely associated with Americans during the Revolutionary War as a form of identity and pride. The British, in contrast, were typically referred to simply as "the British" or "the Redcoats."