First, the characters titles/names indicate the time period (historical context). 'Lady' and 'Nurse' tell readers when the story is taking place. While this would fall under language evidence for the historical context, this could also fall under cultural practices because it was a cultural practice in that time period to address people with titles such as these.
Second, little things such as wording point out the historical context. "Nay," "hath," "doth," and many others make it clear that this story is definitely in a different era, a historical one.
The historical context depicted in this excerpt is quite different from our world today. Instead of, 'Lady,' we use the term 'Mrs/Ms/Miss.' We do not typically have Nurses/Governesses, rather we call them teachers and they play similar yet different roles in our society. We do not usually use words such as, "Nay," "hath," "doth." Rather, "no, have/has, or do/does."