Who is Kailash Satyarthi, the 2014 Nobel Peace Prize winner not named Malala?

The news that Malala Yousafzai had won the Nobel Peace Prize on Friday was widely celebrated around the world, as tributes to the 17-year-old Pakistani student and girls education activist poured in on Twitter. And rightfully so — two years ago, Malala was shot in the head by a Taliban gunman as she rode a bus to school. She survived, vowing to continue her activism. On Friday, she became the youngest Nobel Peace Prize winner ever.

Understandably overshadowed in the celebration of Malala's win was 2014's other Nobel Peace Prize winner, Kailash Satyarthi, a 60-year-old from New Delhi who has fought for decades to end child slavery.

So who is he?

Satyarthi was born in Vidisha, India, in 1954. As a child, he was "moved by other children who had to work, and whose parents were too poor to send them to school," the Associated Press said. "He started a football club with membership fees paying the school fees of needy children. He and a friend collected donations of 2,000 schoolbooks in a single day, a project that eventually became a book bank in his town."

According to a bio on Satyarthi's website, he gave up a lucrative career as an electrical engineer in 1980 to launch his "crusade against child servitude."

His grassroots network, the Global March Against Child Labor — a coalition of NGOs, teachers and trade unions — has "led to the rescue of over 78,500 child slaves."

A husband and father of two children, Satyarthi also "has survived numerous attacks on his life," according to his bio. In 2011, he was attacked while rescuing child slaves from sweatshops in New Delhi. In 2004, Satyarthi and his colleagues were "brutally attacked" while rescuing child workers from a local circus.

"My philosophy is that I am a friend of the children," Satyarthi told the Times of India earlier this year. "I don't think anyone should see them as pitiable subjects or charity. That is old people's rhetoric. People often relate childish behaviour to stupidity or foolishness. This mindset needs to change. I want to level the playing field where I can learn from the children. Something I can learn from children is transparency. They are innocent, straightforward, and have no biases. I relate children to simplicity and I think that my friendship with children has a much deeper meaning than others."

He's won numerous awards for his humanitarian work, including the Aachen Peace Prize (1994), the Robert F. Kennedy Human Rights Award (1995), the Friedrich Ebert Stiftung Human Rights Award (1999) and Parliamentarians for Global Action's Defender of Democracy Award (2009).

In awarding him the Nobel Peace Prize, the Nobel committee said Satyarthi was carrying on the tradition of Mahatma Gandhi by "showing great personal courage" while heading "various forms of protests and demonstrations, all peaceful, focusing on the grave exploitation of children."

In accepting the award, Satyarthi said he is proud of his progress, but that his work is not done.

"Child slavery is a crime against humanity," Satyarthi said Friday. "Humanity itself is at stake here. A lot of work still remains but I will see the end of child labor in my lifetime. If any child is a child slave in any part of the world, it is a blot on humanity. It is a disgrace."