Why was the above image considered an emblem of the French Revolution?

because it represented the concept of sacrifice for the good of the state. ... A prominent radical French journalist, Marat was murdered in the name of the French Revolution.

Explanation:

what do you think? it needs to be explanatory. then answer the question  

1. eadweard muybridge creates series photography - 1877

2. the kinetograph - 1889

3. philo farnsworth - 1929

4. kodak introduces kodachrome - 1935

5.   once upon a time in mexico was the first film to be shot digitally - 2003

i hope this ! : )