How should we face history?

The Great Wall is equivalent to your security door and security window. Although it costs money, it can ensure the safety of your family and property to a certain extent.

In ancient times, the productivity was low, and it was inevitable that such a large-scale project would cause personal casualties. Even when the Qinghai-Tibet Highway was built, many PLA engineers died (1950s). Today's large-scale construction projects (such as the big chimneys of power plants) all have death indicators. Are there fewer mine accidents today? I'm afraid there are more dead people than building the Great Wall.

The Great Wall played a great role in the Qin, Han, Northern Wei and Ming Dynasties, effectively protecting the lives and property of people in frontier areas!

The ancients had only a preliminary concept of human rights. It stands to reason that engineering casualties should be higher than now, but the reality is …, so don't underestimate the wisdom of the ancients!