Final answer:
The Le Dynasty lasted from 1428 to 1789. It fell due to internal strife, weakened central rule, and the rise of feudal lords, culminating in the Tay Son Rebellion which overthrew the dynasty.
Step-by-step explanation:
The Le Dynasty in Vietnam, also known as the Later Le Dynasty, lasted from 1428 to 1789. This dynastic period began with the rule of Le Loi, who established the dynasty after overthrowing the Chinese Ming occupation. Over the years, the Le Dynasty went through several periods of rule, including the prosperous Earlier Le and the chaotic Revival Le periods. The eventual decline of the Le Dynasty was due to a combination of internal strife, weakened central rule, and challenges from rival feudal lords. This power struggle culminated in conflicts such as the Trinh–Nguyen War, leading to the division of Vietnam into two regions.
By the late 18th century, the Tay Son Rebellion, led by the Tay Son brothers, effectively ended the Le Dynasty's rule. The Le court was overthrown, and Nguyen Hue, one of the Tay Son leaders, proclaimed himself Emperor Quang Trung. The fall of the Le Dynasty can be largely attributed to the diminishing power of the Le monarchs, increasing feudal lord autonomy, and the widespread discontent among the peasantry due to heavy taxation and land disputes.