How did qin shihuangdi eliminate possible rivals and gain an important tax base?

Qin Shihuangdi eliminated possible rivals through a series of military conquests, consolidating power by defeating competing states during the Warring States period. He implemented strict laws and centralized control, which quashed dissent and eliminated threats to his authority. Additionally, he established a standardized taxation system that organized the economy, facilitating more efficient tax collection and ensuring a stable revenue base to support his regime and military endeavors. This combination of military might and administrative reforms solidified his rule over a unified China.