During the 20th century, three big stories tried to explain the whole of human history and offer a vision for the future of the world.
The fascist story explained history as a struggle among different nations, and envisioned a world dominated by one human group that violently subdues all others. The communist story explained history as a struggle among different classes, and envisioned a world in which all groups are united by a centralised social system that ensures equality even at the price of freedom.
The liberal story explained history as a struggle between liberty and tyranny, and envisioned a world in which all people co-operate freely and peacefully, with minimum central control even at the price of some inequality.