My son never came home. Now I cannot even find his grave." — Rasheda Begum Sohel Rana's mother. He called his mother to tell her that he was coming home, in Cumilla, to stay with her until the ...

Let's go to America, in 1955, to Montgomery in the southern state of Alabama. There, when a woman called Rosa Parks refused to give up her seat, a bus journey became very important. Rosa's refusal ...