River Thames shipping coming in and out of London, in 1732 it received the world's first lightship. This became a major landmark, and was used as an assembly point for shipping. Today it is marked by Sea Reach No. 1 Buoy. The River Thames contains over 80 islands ranging from the large estuarial marshlands of the Isle of Sheppey and Canvey Island to small tree-covered islets like Rose Isle in Oxfordshire and Headpile Eyot in Berkshire. They are found all the way from the Isle of Sheppey in Kent to Fiddler's Island in Oxfordshire. Some of the largest inland islands, for example
Estuary English it to be a working-class accent, but it is often used by lower middle classes as well. In the debate that surrounded a 1993 article about Estuary English, a London businessman claimed that RP was perceived as unfriendly and so Estuary English was now preferred for commercial purposes. Some people adopt the accent as a means of "blending in" to appear to be more working class or in an attempt to appear to be "a common man". That affectation of the accent is sometimes derisively referred to as "Mockney". A move away from traditional RP accents is almost universal among