Video spoilers of history, starting with the blitz on Poland

Description

When you watch videos on your mobile phone, will the content be synchronized to ancient times?
People in China throughout the ages have learned a lot of knowledge and seen countless history through Li Ze's mobile phone.
Ying Zheng: What precious thing was there in the Sui Dynasty? The second generation died!
Liu Bei: How dare you stab my second brother in the back? When he crosses the river, I cross the river too!
Zhu Qizhen: What? I am actually the Ming God of War! Cool!
Qianlong: My Jurchen warriors are invincible and will surely dominate the world war!
Then...the emperors of all dynasties broke through their defenses collectively!