Ice Bucket Challenge

 

The origins of the idea of dumping cold water on one's head to raise money for charity are unclear and have been attributed to multiple sources. During the Northern-Hemisphere winter of 2013–14, a challenge of unknown origin often called the "Cold Water Challenge" became popular on social media in areas of the Northern United States.The task usually involved the option of either donating money to cancer research or having to jump into cold water.

The ice bucket challenge went viral on social media after a US baseball player and ALS patient, Pete Frates, floated the idea of the challenge in a video on a social networking site. 

More than 1.2 million videos were shared on Facebook between June 1 and August 13. The challenge was mentioned more than 2.2 million times on Twitter since July 2.

According to the ALS website, it has so far received nearly $23 million.

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