The Torah briefly mentions Rosh Hashanah in Leviticus 23 and Numbers 29, where the blowing of the Shofar is mentioned. Most of the information of Rosh Hashanah, its customs and laws and its significance, we know from the Oral Law (the Talmud). It is from the Oral Law, for example, that we learn that the world is judged on Rosh Hashanah.
The Torah reading for the two days of Rosh Hashana consists of two contiguous
selections from parshas Vayerah. The first describes the birth of Isaac to Sarah
and Abraham, the domestic friction between Sarah and Hagar, and the temporary
out-casting of Hagar and Ishmael. The second describes the binding of Isaac.
If Rosh Hashana coincides with the Sabbath, then the afternoon reading is the first
aliyah of the next regular parsha, just as on every Sabbath. When that occurs on
Rosh Hashana, the next Parsha is always either Haazinu or V'Zos Habracha.
Parshat Emor (Leviticus ch.23).
Rosh Hashana begins the evening of Sept 28, 2011.
Rosh Hashana
ראש השנה‎
2
There is a tradition of eating pomegranates during Rosh Hashana because of the many seeds they contain. Some people have the tradition that they contain 613 seeds which matches the 613 mitzvot in the Torah. Also, on Rosh Hashana, Jews eat apples dipped in honey, to symbolize a sweet new year. Please see the related link for an alternate explanation regarding pomegranates and Rosh Hashana.
17-18/Sep/2012
Rosh haShana
i believe it is on the 9th of September
Rosh HaShana isn't made out of anything, it's the Jewish New Year.
Selichot are special prayers said during the days before Rosh Hashana. Selichot are prayers about forgiveness. These prayers are said early morning before Shacharit; the daily morning prayers. Sefardim start saying Selichot a month before Rosh Hashana; the entire month of Elul. Ashkenazim begin saying Selichot on the Sunday before Rosh Hashana; unless Rosh Hashana is on Monday or Tuesday, in which case they start saying Selichot on the Sunday 10 days before Rosh Hashana. Selichot are said until Yom Kippour. Selichot are not said on Shabbat.
According to Jewish tradition, God judges the world on Rosh Hashanah.
Rosh Hashana is the Jewish new year, it doesn't related to WW2.