The Ice Bucket Challenge was a viral social media campaign that began in 2014 to raise awareness and funds for Amyotrophic Lateral Sclerosis (ALS), a progressive neurodegenerative disease. Participants would dump a bucket of ice water over their heads and then challenge others to do the same, often within 24 hours. If they declined, they were encouraged to make a donation to an ALS charity. The challenge quickly gained popularity, with many celebrities and public figures participating, which helped to spread awareness about ALS. The campaign successfully raised over $115 million for the ALS Association, significantly contributing to research and support for those affected by the disease.