In 726 ce emperor leo carried out an important act which completes the timeline above what symbolic act did he carry out?

Announces he is against icons.

Explanation:

Leo III was a Byzantine Emperor who founded the Isaurian dynasty. One of his most important contributions was the prohibition of the veneration of icons. Leo III issued a series of edicts in 726 CE in which he argued against the veneration of images (icons). This prohibition was not welcome by the population, and in fact, it was strongly opposed with hostility, causing deep divisions among the population.

explanation:

i think it is in quadrant 4.

the five year plans were part of a command economy. there was little choice in what would be emphasized for the current 5 year period.

the answer to democracy or totalitarianism is a bit harder. in stalin's time, russia was totalitarian. now that's not entirely true. putin has moved towards at least the boundary.