Same reason your question and this answer is written in modern English. It was the version of English they had at the time. There have been many different versions of the English Language.
No. Macbeth was classified as a Shakespearean Tragedy.
In Shakespearean English as written, the letter "I" with an apostrophe is a contraction and can mean "in" or "if" depending on the context.
MACBETH
The play Macbeth is written entirely in English.
Macbeth
Shakespearean isn't a language...
macbeth
In Shakespearean language, "him" would likely be expressed as "he," "himself," or "his."
shakespearean comedy
In Shakespearean language, you can say unpleasant as "unlovely" or "displeasing."
Macbeth!
macbeth has 3 mysterious witchs in it