How is Jewish Time like a Circle?: Purim

It was a truly fateful day when King Achashverosh couldn't fall sleep...

At the pinnacle of peril in Megillat Esther, the story of Purim, megillah readers briefly switch to the melody of Yom Kippur. Why is this?

Rabbi Micah Greenland, International Director of NCSY, explains that by looking at Jewish history not as timeline, but more like a flat circle, there are certain Hebrew calendar days that tend to be either miraculous or disastrous...