Pete Frates, who inspired the global phenomenon known as the "ice bucket challenge" to tackle a deadly neurodegenerative disease has died at the age of 34 on Monday, December 9. 

Pete Frates
Pete Frates

A former US college baseball player from the Boston area struggled with ALS, also known as Lou Gehrig's disease, was one of the inspirations behind the ice bucket challenge which took social media by storm in 2014.

What was the ALS Ice Bucket Challenge? 

Pete Frates
On July 31, 2015, Pete Frates, his wife and daughter participate in the Ice Bucket Challenge. Staff Photo by Arthur Pollock. Image: Twitter

Millions took up the challenge which involved dousing themselves with a bucket of ice cold water and posting the video online, before making a donation to medical research and daring others to do the same. A galaxy of celebrities, high-profile personalities and entire sports teams took part in the challenge, including Tom Cruise, Steven Spielberg, Bill Gates and even former US president George W. Bush.

The campaign has reportedly raised more than $200 million to fund research into ALS, whose sufferers' bodies slowly shut down as their nervous systems degenerate. The condition, officially known as Amyotrophic lateral sclerosis, is more commonly called Lou Gehrig's disease after another baseball player who died of it in 1941.

'Pete fought a heroic battle with ALS' 

Pete Frates
Image:@petefrates/Twitter

"Pete passed away surrounded by his loving family, peacefully at age 34, after a heroic battle with ALS," his family said in a statement. "Remarkably, Pete never complained about his illness. Instead, he saw it as an opportunity to give hope to other patients and their families, the statement said. Frates' friend Corey Griffin, a 27-year-old philanthropist who was instrumental in helping the fund-raising campaign go viral, died in a swimming accident shortly after the online phenomenon took off.