This is from
http://www.angelfire.com/planet/koran/ connected to topic, this explains how Islam and "People of the Book"-religions were calculated to be connected into these parallels of Jesus mentioned on first page of topic.
MY CALCULATIONS IN Matt.20:1-16
There is no mentioning if workers came in what part of each "hour"
("about") 11th = 400-600 AC, Islam 570-632AC (to beginning of 12th)
10th = 200-400 AC
9th = 1 AC-200 AC (Christianity 32 AC ->)
8th = 200 BC- 1 AD
7th = 400 BC-200 BC
6th = 600 BC-400 BC (Messiah prophesied)
5th = 800 BC-600 BC
4th = 1000 BC- 800 BC
3th = 1200-1000 BC (Sabians / Zarathustrians)
2nd = 1400 BC-1200 BC
1st = 1600 BC-1400 BC (Early Jews)
"0-hour" = 1800 BC-1600 BC. ("Early in the morning he went", not actually INSIDE first hour, Jewish religion was practically born only after Jacob etc. in 1600 BC-1400 BC)
Well, Jesus did not go to practice math in schools. This is not math-exam, but for people to understand some idea. And maybe he being just a human, who makes errors and has somewhat limited knowledge, is reason also to why there is least "error-marginale" (+ - inside 200 years) in places of parallel connected to himself and Christianity.
MY CALCULATIONS IN Luke 13:6-9
Maybe Israel AS AN OFFICIAL STATE (eventhough part of Rome and so not state) was "cut down" 70 AC, but Jewish religion and its sect Christianity did not "expire" as a (right) religions before Islam came 600 years after Jesus (Jesus 32 AC - Mohammed 632 AC) from point of Islam. Israel itself as a state have no importance for God without its religion, do you Christians agree that from Bible?
Israel (that "tree") is not subject anymore after its cutting down (in 600 AC), but ground around it. "Ground around it" is symbol for spiritual, geological and religious connection between semitistic Islamic and Jewish religions. But before it (before Islam, those last 600 years that were given extra-time) Jewish-tree has opportunity to grow fruits "next year". Obviously it did not do so as God created Islam. All that tree produced during that "year" (600 years) was form of Christianity that worshipped Jewish prophet as a god. From Jewish view those are not good fruits.