was celebrated at the beginning of the month Tisri, the first month of the civil year. It received its name from the circumstances that the trumpets usually blown at the commencement of each month were on that occasion blown with unusual solemnity ( Leviticus 23:23-25 ; Numbers 10:10 ; 29:1-6 ). It was one of the seven days of holy convocation. The special design of this feast, which is described in these verses, is not known.

These dictionary topics are from
M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition,
published by Thomas Nelson, 1897. Public Domain, copy freely.