Lammas Day, also known as Loaf Mass Day, is a Christian holiday celebrated in some English-speaking countries in the Northern Hemisphere on 1 August. The name originates from the word "loaf" in reference to bread and "Mass" in reference to the primary Christian liturgy celebrating Holy Communion. It is a festival in the liturgical calendar to mark the blessing of the First Fruits of harvest, with a loaf of bread being brought to the church for this purpose.
Source: Wiki
Source: Wiki