What did the African-American athletes in Mexico Olympic do in order to draw international attentions to social discrimination in the united state?

(i) To draw international attentions to racial discrimination in the United State the two African- American athletes Tommie Smith and John Carlos Stood with Clenched fists upraised and heads bowed, while the American national anthem was played. Their gesture symbolised ‘Black Power’.
(ii) They wore black socks without shoes to represent ‘black poverty’.
(iii) Thus, their gesture signifies black power and protest against social discrimination.