Here's what he's known for:
* Fighting for the welfare of orphaned and abandoned children. Barnardo witnessed the plight of these children in London's slums and dedicated his life to helping them.
* Establishing the first children's home in London. This was a revolutionary act, as previously such children often ended up in workhouses or on the streets.
* Pioneering the concept of foster care. Barnardo believed in placing children in loving families, and his organization was one of the first to implement foster care programs.
* Championing children's rights. He fought for laws to protect children from exploitation and abuse, and he tirelessly advocated for their education and well-being.
Barnardo's legacy continues to impact the lives of millions of children around the world. The Barnardo's charity, now known as Barnardo's, remains one of the most recognized and respected charities in the UK, providing a wide range of services to vulnerable children.