The new year is the only Jewish holiday that is observed for two days by all Jews (other holidays are observed for just one day within the Land of Israel) as it is also the only major holiday that falls on a new moon.

A common greeting on Rosh Hashanah is shana tovah u’metukah, Hebrew for “a good and sweet new year.” Many traditional Rosh Hashanah foods — apples and honey, raisin challah, honey cake and pomegranate — are eaten, in part, for this reason.

Source: www.huffingtonpost.com/