(i) Similarity between Tommie Smith and John Carlos : Both Tommie Smith and John Carlos were African-Americans. They both were Blacks and were facing racial discrimination in the United States. (ii) Similarity between Tommie Smith, John Carlos and Peter Norman : Peter Norman, an Australian and both Tommie Smith and John Carlos belonged to different nations but still they all were one, i.e., they all were athletes. (iii) United on racial discrimination : All the three athletes were united on the issue of racial discrimination though one of them belonged to white class.