In 537 BC, some 300 years before the first emperor unified China.

元前 537 年，大约在秦始皇统一中国的三百年前。

Wheat, for example, was domesticated around 8500 BC to make porridge.

例如小麦，约在元前 8500 年被人们培育，用来做粥。

In 268 BC Ashoka took his place on the throne-but not without considerable struggle.

元前二六八年, 经过激烈的争斗, 阿育王夺得了王位。

There is the partially intact ruins of a Roman theatre dating back to 15 BC.

这里有保存完好的古罗马剧场遗迹，其历史可以追溯至元前15年。

Its construction began in the 5th century BC.

长城始建元前5世纪。

Want to see a 3rd century BC army of more than 8000 men ?

想一睹元前3世纪多达8000多人的军队吗？

The construction of the Colossus took 12 years and was finished in 282 BC.

建造这座巨像花了12年的时，元前282年完工。

The warrior story is supposedly set around 2,356 BC.

据说勇士故事大约发生在元前2356年左右。

In the fifth and sixth centuries BC, Atlantis was the main rival of Athens.

在元前5世纪和6世纪，亚特兰蒂斯是雅典的主要对手。

This means that it happened around 9,500 BC.

这意味着它发生在元前九千五百年左右。

In 3,000 BC Uruk was more densely populated than modern day New York City.

在元前 3000 年，乌鲁克的人口密度已经超过了现代纽约市。

Typically for regional BC, we're counting on about 30%.

通常对 BC 省的地区，我们指望大约 30%。

Human consumption of caffeine likely starts back in 3000 BC with the consumption of tea.

人类对咖啡因的使用可能始元前3000年的茶饮用。

First off, the Neolithic period in Britain lasted from about 4,000 BC to 2,300 BC.

首先，在不列颠岛上，新石器时代大概是从元前4000年开始一直到元前2300年。

After which he and his soldiers ruled the Roman empire till 79 BC.

后来他便和他的士兵们一道统治罗马帝国直至元前79年。

And not just Athens, but the whole of Greece was saved. This was 490 BC.

不仅雅典，而且整个希腊都得救了。这是发生在元前490年的事。

The oldest surviving pairs, dating to 1300 BC, belonged to horsemen.

现存最古老的几条裤子可追溯到元前1300年，属某些骑手。

The Maldives was settled in 300 BC by fishermen from India and Sri Lanka.

而早在元前300年，来自印度和斯里兰卡的渔民就已在此定居。

However, by 900 BC, many Maya cities were abandoned, calling an end to the empire.

然而，及至元前 900 年，许多玛雅城市被遗弃，玛雅帝国逐渐衰落。

Born in 476 BC, he came from a family which was very poor.

墨子元前476年生一个很贫困的家庭。