With an aim to raise just €12,000 for charity, Stephen Sutton was soon to realise his story was going to touch the hearts of people all across the globe.
As of this morning, the 19-year-old has raised €3m, with nearly 100,000 people pledging their support.
After publishing a bucket list on his facebook page of things he wants to do before he dies, Stephen said: "I've always been a firm believer that people are 'good' and to see people come together in the way they have is incredibly touching and heart-warming.
Stephen, from Staffordshire in the UK, said he was "feeling well" and was in a "stable" condition after his health worsened last weekend.
"The tumours in my body are still rife and dangerous, but I feel so lucky to just still be here," he added.
"In fact, I feel completely privileged to be in a position where I can help make such a difference to other people's lives."
As donations continued to flood in, JustGiving itself donated €60,000 to Stephen's appeal.
The website stands to make more than €75,000 from the 5% fee it charges charities for online donations.
In a message posted alongside its donation, it wrote: "Stephen, we think you're amazing. It's been a privilege supporting your fundraising. You've now broken all records on JustGiving, so here's a special donation from us."