The purpose of Rosh Hashana is to declare God king, because recognition of Him as king is a prerequisite to accepting His judgment on Yom Kippur.
Answer:getting rid of our sins
Answer:The Festival of Rosh Hashana is the Jewish new year.
The Jewish calendar is a lunar-based calendar (29/30 days in a month, based on a lunation of 29 days, 12 hours and 44 minutes). In order to keep the months of the lunar year in correspondence with the seasons of the solar year there is a leap month added every two or three years.
Tishrei, the month starting with Rosh Hashanah, is actually the seventh month of the year; Nisan in the Spring is the first month (Exodus 12:2). Tishrei was also the month from which a king's reign was counted (Talmud, Rosh Hashanah 2b).
Answer:Our tradition is that the world is judged for the coming year on Rosh Hashanah (Talmud, Rosh Hashanah 16a). We pray on Rosh Hashanah to be judged favorably.