From the destruction of the Second Temple, which (according to "Seder Olam") occurred at the end of the last week of a Sabbatical year, to the suppression of the Bar Kochba revolt (or the destruction of Bethar) is given as a period of 52 years. But the text here is very confused and has given rise to various emendations and interpretations, as the historical date for the destruction of the Second Temple is 70 AD and that for the conclusion of the Bar Kochba revolt is 135 AD.