What are some Examples Of selflessness?

Throughout history there have been many acts of selflessness. While some of these acts are subjectively selfless, some resonate in most people's hearts as tremendous acts of bravery where one person sacrificed his own safety for the well-being of a group.

Mahatma Ghandis hunger strikes to protest British occupation of India

Rosa parks refusal to sit in the back of the bus

Martin Luther's Kings "i have a dream" speech

when Wesley Autrey sees a man seizing and falling onto the tracks he jumps in and tries to pull him out of the tracks but then realizes there no time left so Autrey covers the man with his body both he and the other guy are safe