The United States is marking its 250th anniversary of independence, but celebrations have been disrupted by a severe heatwave sweeping across the country.

The anniversary commemorates the adoption of the Declaration of Independence in 1776, which declared the 13 American colonies' independence from British rule.

The US will also mark the anniversary with a series of indoor events and exhibitions, which will showcase the country's rich history and culture.

As the US celebrates its 250th anniversary of independence, it is also reflecting on its past and looking forward to its future, with a renewed sense of purpose and determination.

The anniversary is a significant milestone in American history, marking a pivotal moment in the country's struggle for freedom and self-governance.

The US will also use the anniversary to promote its values of democracy, freedom, and equality, and to celebrate its diverse culture and traditions.