The earliest leadership theories in the 20th century emphasized control and centralization of power.

Control

The process of regulating organizational activities to make them consistent with the expectations established in plans, targets, and standards of performance.

Centralization of Power

The concentration of authority and decision-making autonomy in a small group or a central location within an organization or system.

20th Century

The period from January 1, 1901, to December 31, 2000, marked by significant global changes, including scientific advancements and two world wars.