How is big data changing the future of journalism?

Order the events as they occurred in history. thomas edison and william dickson invent the kinetoscope. the view from the window at le gras is created. disney produces flowers and trees, the first color film. stanley kubrick revolutionizes special effects with 2001: a space odyssey. muybridge creates the horse in motion. francis ford coppola’s apocalypse now is selected for preservation by the library of congress. d. w. griffith directs the birth of a nation. marilyn monroe makes her film debut.

Based on the sentence, what does a studious effort require

2+2+2+2+2++2+2+2+2+22+2+2+2+22+2+2+2+22+2+2+2+22+2+2+2+22+2+2+2+22+2+2+2+2=