Lido,
Well, I'm certainly still here, so it must not have happened yet
. I'm sorry, but I cannot offer the correct citations or strong arguments to what is, at best, educated speculation.
I have been listening to Bible teacher, Harold Camping, on Family Radio out of Oakland, California for years. That is where I got my opinions.
He is a Bible student and lay teacher. You don't have to have a divinity degree or be an ordained minister, priest, or rabbi to understand the Word of God. You have only to read it and, if you really know what you are doing, ask our Heavenly Father to illuminate your mind and impart the insight to see clearly His HOLY RIGHTEOUS WILL.