The Olympic cauldron is lit by Mexican hurdler Enriqueta Basilio during the opening ceremony of the 1968 Summer Olympics in Mexico City, Mexico

- Image ID: BTK0WM
Everett Collection Inc / Alamy Stock Photo
Image ID: BTK0WM
British, soldiers, about, to, clash, with, Catholic, demonstrators, in, LondonderryNorthern, Ireland1972,