Vulcan salute Leonard Nimoy for the "Star Trek" episode "Amok Time", which was the first episode with Vulcans other than Spock. Nimoy wanted something to help develop the Vulcans sociologically and suggested that Vulcans have a gestural greeting. He then proposed the (now globally-recognized) sign. The accompanying spoken blessing, "live long and prosper" – ""dif-tor heh smusma"" in the Vulcan language (as spoken in "") – also appeared for the first time in "Amok Time", scripted by Theodore Sturgeon. The less-well-known reply is "peace and long life", though it is sometimes said first, with "live long and prosper" as the reply. The
Long Live Southbank be funded to a significant degree by commercial restaurant and retail developments in the Undercroft space which would have been closed to its skateboarding and other current users. Although an alternative location for skateboarding and other activities was proposed by Southbank Centre, under Hungerford Bridge, this was considered by users of the Undercroft to be a quite different space and lack the unique character and heritage of the Undercroft. On 18 September 2014, Long Live Southbank signed a Section 106 agreement with the Southbank Centre guaranteeing the space's long-term future. and the Festival Wing proposals were withdrawn by Southbank Centre.