Irreechaa- the Oromo equivalent of Thanksgiving, was traditionally celebrated bi-annually in different parts of the Oromo country. The Irreecha Birra festival is celebrated in the month of September or October and Irreecha Arfaasaa in the month of April or May, depending on the Oromo Calendar. The festival in its traditional form is celebrated in different localities across Oromia.
It is an Oromo custom to gather on the river banks and the shores of lakes and give thanks to Waaqa (God) for all his bounty and pray for Nagaa (peace) and Araara (reconciliation) among humans and with God.
Today, the festival has come to mark the end of the rainy season, and more. It marks the end of the cultural trauma which had affected the Oromo for about a century.