Occupy Wall Street (OWS) is an ongoing series of demonstrations in New York City based in Zuccotti Park in the Wall Street financial district. Initiated by the Canadian activist group Adbusters, the protests were inspired by the Arab Spring movement, especially Cairo's Tahrir Square protests, and the Spanish Indignants. The participants' slogan "We are the 99%" refers to the difference in wealth between the top 1% and the other citizens of the United States. They are mainly protesting social and economic inequality, corporate greed, and the power and influence of corporations, particularly from the financial service sector, and of lobbyists, over government. By October 9, similar demonstrations were either ongoing or had been held in 70 major cities and over 600 communities in the U.S., including the estimated 100,000 people who demonstrated on October 15.Internationally, other "Occupy" protests have modeled themselves after Occupy Wall Street, in over 900 cities worldwide.