<P> On August 11, 1973, Clive Campbell aka DJ Kool Herc spun the turntables at a back - to - school, birthday party for his sister Cindy Campbell held in the recreation center at 1520 Sedgwick . He was assisted by Theodore Puccio who has been credited as the first MC but many insiders attribute that honor to Coke La Rock . After spending months perfecting a new technique involving "playing the frantic grooves at the beginning or in the middle of the song" with two turntables, a mixer, and two copies of the same record, Campbell unveiled the technique at his sister's party . After renting the recreation room for 25 dollars, Cindy charged 25 cents for females and 50 cents for males to attend . "I wrote out the invites on index cards, so all Herc had to do was show up . With the party set from 9 p.m. to 4 a.m., our mom served snacks and dad picked up the sodas and beer from a local beverage warehouse ." With the exhibition of his new style, Campbell's friend Coke La Rock demonstrated another innovation called rapping . Attendees, or people who later claimed to be there, include Grandmaster Caz, leader of The Cold Crush Brothers, Grandmaster Flash, Busy Bee, Afrika Bambaataa, Sheri Sher, Mean Gene, Kool DJ Red Alert, and KRS - One . </P> <P> Starting in the early 2000s, building owners threatened to turn 1520 into high rent units . Senator Schumer led a rally in 2007 focused on maintaining the affordable costs of the housing in order to maintain its working class roots . The New York State Office of Parks, Recreation and Historic Preservation recognized the building as the "birthplace of hip hop" on July 5, 2007 . </P> <P> Starting in 2007 the building's owners sought to repeal the status afforded to the building by the Mitchell - Lama Housing Program, which allowed it to maintain rent control for low - income and working class residents . Despite work by groups such as the Urban Homesteading Assistance Board and the Tenants and Neighbors Association to preserve the building's Mitchell - Lama status, the courts allowed the building's status to be repealed . In 2008 the building was sold to a real estate group that included Mark Karasick, a prominent real estate investor, which intended to turn the building into market - rate housing . However, after the United States housing bubble burst a period of neglect and threats of forced evictions daunted residents, and despite promises to the opposite, the building fell into decline . In 2010 the city's Housing Development Corporation provided a $5.6 million loan to allow Winn Development and a new group called Workforce Housing Advisors to buy the building's mortgage from Sovereign Bank for $6.2 million . Rafael E. Cestero, the commissioner of the New York City Department of Housing Preservation and Development, said they supported the sale in order to help provide sustainable housing for working - class families . </P> <P> On November 7, 2011, following a foreclosure auction with no active bidders, Workforce Housing Advisors were able to take title of 1520 Sedgwick Avenue . Several residents, who were present at the auction along with tenant advocacy group Urban Homesteading Assistance Board, wept with joy when the auctioneer announced no bids had been registered . John Crotty of Workforce Housing Advisors told the New York Times that his group intends to renovate the distressed building and work with tenants to recognize its importance . The group's investors are more interested in steady, secure returns than in making money quickly . Some money for renovations will be provided by New York City's department of Housing Preservation and Development, and the Housing Development Corporation . The new owner intends to pursue a listing for on the National Register of Historic Places, for which the building was deemed eligible in 2007 but Karasick declined to accept . </P>

When was the hip hop project (25) made