Lammas is observed on the 2nd of August.
It is an Irish holiday that follows the day after Lughnasadh.
While Lughnasadh was merry-making, on Lammas thanks would be given for the coming grain harvest by prayers and offerings of bread. Loaves of bread, including a Lammas Bannock, would be made on this morning from the new grain.
The day is more of a Christian tradition superimposed on the pagan one of Lughnasadh.
Fairs would sometimes be held on the day following Lammas.
The word “lammas” is presumed by some to be a contraction of “loaf mass.”