Oak Apple Day Oak Apple Day Restoration Day, more commonly known as Oak Apple Day or Royal Oak Day, was an English public holiday, observed annually on 29 May, to commemorate the restoration of the English monarchy in May 1660. In some parts of the country the day is still celebrated. It has also been known as Shick Shack Day, or Oak and Nettle Day. In 1660, Parliament passed into law "An Act for a Perpetual Anniversary Thanksgiving on the Nine and Twentieth Day of May", declaring 29 May a public holiday "for keeping of a perpetual Anniversary, for a Day of Thanksgiving
Wars of the Three Kingdoms General George Monck, commanding English occupation forces in Scotland, ordered his troops from the Coldstream barracks, marched them south into England, and seized control of London by February 1660. There he accumulated allies and agreements among the English and London establishments including the newly constituted Convention Parliament, to which Monck was elected a member. First a Royalist campaigner, then a Parliamentary soldier, he now contrived for the Restoration of the monarchy; Monck arranged that the Convention Parliament would invite Charles II to return as king of the three realms—which was done by act of Parliament on 1 May 1660. The