Solidarity (Polish trade union) Solidarity (Polish trade union) Solidarity (, pronounced ; full name: Independent Self-governing Labour Union "Solidarity"—"Niezależny Samorządny Związek Zawodowy "Solidarność"" ) is a Polish labour union that was founded on 17 September 1980 at the Lenin Shipyard under the leadership of Lech Wałęsa. It was the first trade union in a Warsaw Pact country that was not controlled by a communist party. Its membership peaked at 10 million members at its September 1981 Congress, which constituted one third of the total working-age population of Poland. In the 1980s, Solidarity was a broad anti-bureaucratic social movement, using the methods of civil resistance
Mass shootings in the United States that hundreds of mass shootings take place in the United States in a single calendar year, citing a crowd-funded website known as "Shooting Tracker" which defines a mass shooting as having four or more people injured or killed. In December 2015, "The Washington Post" reported that there had been 355 mass shootings in the United States so far that year. In August 2015, "The Washington Post" reported that the United States was averaging one mass shooting per day. An earlier report had indicated that in 2015 alone, there had been 294 mass shootings that killed or injured 1,464 people. "Shooting