Start by reading Luke 3:1-20. Here’s a link if you don’t have a Bible nearby. https://www.biblegateway.com/passage/?search=Luke%203%3A1-20&version=NLT Once again, look at all this detail to clarify the timing of these events.
Please read Luke 1:1-25. Here’s a quick link to it in case you need one. Bible Gateway is one of a ton of places you can read the Bible online