Holocaust Remembrance Day in Israel, and the 70th anniversary of the Warsaw Ghetto uprising

From The Huffington Post:

http://www.huffingtonpost.com/2013/04/07/holocaust-remembrance-day-israel-yom-hashoah_n_3033917.html?utm_hp_ref=world

And from the website of the United States Holocaust Memorial Museum, here is a brief history of the uprising:

http://www.ushmm.org/wlc/en/article.php?ModuleId=10005188