Ireland

Brendan the Navigator, early Irish transatlantic voyager, died

Saint Brendan of Clonfert or Bréanainn of Clonfert (c. 484 – c. 578) called the Navigator or the Voyager, is one of the early Irish monastic saints whose legends have overshadowed their history. He is chiefly renowned for his semi-legendary quest to the Land of Delight. His feast day is May 16.

Community in Iona founded in Scotland by Saint Colmcille and followers from Ireland

Saint Columba or Saint Colm Cille sometimes known as St. Columba of Iona (7 December 521 - 9 June 597), (Old Irish Columb Cille, meaning Dove of the church), was the outstanding figure among the Gaelic missionary monks who reintroduced Christianity to Scotland during the Dark Ages.

Community of Iona founded by Colum Cille (St Columba) from Ireland

St Kessog Day, the patron saint of Scotland

On March 10 560, St Kessog, the Irish missionary in the Lennox area and southern Perthshire, was killed. Kessog was Scotland’s patron saint before Andrew, and his name was used as a battle cry by the Scots. St Kessog was a disciple of Columba of Iona who preached and taught in the sixth century AD.

Beltaine (Cetshamain) feast of Celtic god Belenos

Beltane, also spelled Beltaine, is a Celtic festival that marks the beginning of the warmer season, usually observed around the first of May. It is one of the four Gaelic seasonal festivals, along with Samhain, Imbolc, and Lughnasadh, and it has roots in pre-Christian, pagan traditions.