Zion, Eretz Yisrael (The Land of Israel) and Jerusalem are mentioned frequently in ancient Jewish texts: the Bible, the Prophetic Books, the Talmud, and the Siddur (Jewish prayerbook). The archeological evidence for Jewish presence in The Land of Israel is abundant. While it has evolved over two millennia, the basic structure and core content of the Siddur and the special prayers for home and synagogue were codified and have been set for worship since the early rabbinic period, about the 6th century of the common era. (source)