The United States celebrated their 250th anniversary with a major event held at the National Mall in Washington, where the largest fireworks display ever staged was realized. According to multiple news outlets, the fireworks were produced by an Italian company.

According to la Repubblica, the show featured 850,000 fireworks launched from 10 different sites. The U.S. National Park Service raised an alarm regarding the possible pollution consequences of the pyrotechnic display, as reported by Il Giornale. Medical doctors also advised citizens to wear masks during the event, again according to la Repubblica.

The 250th anniversary celebration also included a performance of the American national anthem, as reported by Libero.

The scale of the fireworks display, described as the largest in the country's history, has generated a public debate over its environmental impact, with authorities and health professionals urging precautions for those in attendance.