Charles II of England was a "de facto" republic, led by Oliver Cromwell. Cromwell defeated Charles II at the Battle of Worcester on 3 September 1651, and Charles fled to mainland Europe. Cromwell became virtual dictator of England, Scotland and Ireland. Charles spent the next nine years in exile in France, the Dutch Republic and the Spanish Netherlands. A political crisis that followed the death of Cromwell in 1658 resulted in the restoration of the monarchy, and Charles was invited to return to Britain. On 29 May 1660, his 30th birthday, he was received in London to public acclaim. After 1660, all legal documents
Charles II of England founded a number of schools, including the Royal Mathematical School in London and The King's Hospital in Dublin, as well as the Erasmus Smith schools in various parts of Ireland. The anniversary of the Restoration (which was also Charles's birthday)—29 May—was recognised in England until the mid-nineteenth century as Oak Apple Day, after the Royal Oak in which Charles hid during his escape from the forces of Oliver Cromwell. Traditional celebrations involved the wearing of oak leaves but these have now died out. Charles II is commemorated by statues in London's Soho Square, in Edinburgh's Parliament Square, in St Mary's