Shajar al-Durr vs Yang Guang

After the death of her husband As-Salih Ayyub, Shajar al-Durr became the de facto ruler of Egypt. She was proclaimed Sultana with the support of the Mamluk commanders. Her reign marked the first and only time a woman ruled Egypt in the medieval Islamic period.

To legitimize her rule and appease the Ayyubid caliph, Shajar al-Durr married the Mamluk commander Aybak. She abdicated the throne in his favor but retained significant influence. This marriage established the Mamluk Sultanate under Aybak's nominal rule.

Shajar al-Durr ordered the assassination of her husband Sultan Aybak in his bathhouse after he planned to marry another woman. She feared losing her power and influence. This act led to a power struggle among the Mamluks and her own downfall.

After Aybak's murder, Shajar al-Durr was arrested by the Mamluks loyal to Aybak. She was beaten to death by Aybak's concubines or slaves, and her body was thrown into a ditch. Her death ended the brief period of female rule in the Mamluk Sultanate.

Emperor Yang Guang ordered the construction of the Grand Canal, linking the Yellow River and Yangtze River. The project mobilized millions of laborers and created a vital waterway for grain transport and trade, but the immense human cost led to widespread resentment and rebellion.

Yang Guang launched three massive military campaigns against the Korean kingdom of Goguryeo. The first invasion in 612 ended in catastrophic defeat at the Battle of Salsu, with hundreds of thousands of Chinese soldiers killed. The repeated failures drained the treasury and sparked widespread revolts.

While Yang Guang was campaigning against Goguryeo, the noble Yang Xuangan launched a major rebellion in the rear. The revolt was suppressed, but it exposed the fragility of Sui rule and encouraged further uprisings across the empire.

As rebellions engulfed the empire, Yang Guang was strangled to death in Jiangdu by his own guards led by Yuwen Huaji. His death marked the effective end of the Sui dynasty, which collapsed shortly after, leading to the rise of the Tang dynasty.