This is a "pregnant" year on the Jewish calendar, the 5th out of 7 in the current nineteen year cycle. That means there is a whole extra month, and according to most opinions extra month is this one, the first Adar, and not next month, the second Adar, which contains the festival of Purim, exactly 30 days before the festival of Pesach (Passover). The first two articles discuss the "leap" month phenomenon.
This Friday, 7 Adar A, is the anniversary of the birth of Moses 3243 years ago, and of his passing on exactly the same date 120 years later.