What year, in the equivalent gregorian, and Hebrew, was the second temple destroyed?
Edit: I did some googling before posting and it seems that there's a discrepancy between chazal and the secular historians.
There are actually three different years found in Jewish sources for the destruction of the second Holy Temple in Jerusalem:
3828 / 68 CE
3829 / 69 CE
3830 / 70 CE
This discrepancy is based on a number of factors. For more on that see: http://www.chabad.org/library/article_cdo/aid/2641925/jewish/Which-Year-Was-the-Second-Temple-Destroyed-69-CE-or-70-CE.htm