A display on grass celebrating the 100 year centenary of Northern Ireland, in Ballyduff, Newtonabbey, Northern Ireland, Monday, May 3, 2021. Queen Elizabeth II has stressed the need for “reconciliation, equality and mutual understanding” as she sent her “warmest best wishes” to the people of Northern Ireland to mark what is widely considered to be its centenary. Northern Ireland was created on May 3, 1921, when the Government of Ireland Act came into effect and partitioned the island of Ireland into two separate entities. Northern Ireland became part of the U.K. alongside England, Scotland and Wales. (Liam McBurney/PA via AP)