Hyde Park is a Royal Park in central London and one of the largest in the city. Adjoining Kensington Gardens, the two together form the largest green space in central London but are separate entities. Hyde Park spreads over 350 acres and is divided in two by the Serpentine, a snaking recreational lake created in 1730. Hyde Park was acquired from Westminster Abbey in 1536 by Henry VIII and was originally a private deer park for hunting, but opened to the public during Charles I’s reign in 1637. The first landscaping took place in the 1730s, designed by Charles Bridgeman, and additions were made in later years including the Grand Entrance in 1824-5. The most important event of the 19th century was the Great Exhibition of 1851 which was held in the Crystal Palace built in Hyde Park and today the park is used for many public events including concerts, an annual ‘Winter Wonderland’ and demonstrations. Speakers’ Corner, on the north-east corner, is a spot where public speaking, preaching or debate is allowed, as long as the speeches are lawful, a tradition which has been in place since the late 1800s.