May 21

1639

Lord Deputy Thomas Wentworth imposes the Black Oath of loyalty to Charles I on all Ulster Scots over the age of 16

Ireland

In 1639, Thomas Wentworth, 1st Earl of Strafford, who was the Lord Deputy of Ireland under King Charles I, imposed what became known as the “Black Oath” on the Ulster …

1650

James Graham, (Montrose), Scottish royalist commander, executed by Cromwellian government

Scotland

James Graham, 1st Marquess of Montrose (1612 - 21 May 1650), was a Scottish nobleman and soldier, who initially joined the Covenanters in the Wars of the Three Kingdoms, but …

1745

Count Daniel O'Connell, a soldier in French and British services, is born in Derrynane, Co. Kerry

Ireland

Count Daniel O’Connell, a soldier in French and British services, is born in Derrynane, Co. Kerry. This May 21, 1745 entry records a moment in Celtic history connected with …

1916

Clocks and watches go forward one hour as the Daylight Saving Act (Summer Time) is introduced

Ireland

Clocks and watches go forward one hour as the Daylight Saving Act (Summer Time) is introduced. This May 21, 1916 entry records a moment in Celtic history connected with Ireland.

1917

Dennis Day, of Irish parents, is born in New York, NY

Ireland

Dennis Day, of Irish parents, is born in New York, NY. This May 21, 1917 entry records a moment in Celtic history connected with Ireland.

1920

James Plunkett, pseudonym of James Plunkett Kelly; novelist, is born in Dublin

Ireland

James Plunkett, pseudonym of James Plunkett Kelly; novelist, is born in Dublin. This May 21, 1920 entry records a moment in Celtic history connected with Ireland.

1983

TSB Bank Scotland (now Lloyds TSB Scotland) formed

Ireland

TSB Bank Scotland (now Lloyds TSB Scotland) formed. This May 21, 1983 entry records a moment in Celtic history connected with Ireland.