Located in the upper Chesapeake Bay region, Baltimore is a city rich in American history.

位于切萨皮克湾上游地区丰富的巴尔的摩市是美国历史。

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A copy of Charles Darwin's notebook containing his idea of an evolutionary tree. The notebook is in the American Museum of Natural History in New York City.

(图片)查尔斯·达尔文笔记本的复制件，里面包含他的进化树思想。笔记本原件在纽约的美国生物史博物馆。

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Dumbbell was the outcome of American urbanization in earlier times, and was also the first low-rent tenement for low-income city residents in American history.

“哑铃公寓”是美国城市化初期的产物，是美国历史上第一次为底层民众设计的标准式廉租公寓，由于楼房外形酷似哑铃而得此名。

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Mario Ritter has more. The American Museum of Natural History in New York City has a most unusual object on exhibit.

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After her trips, Margaret Mead always returned to the American Museum of Natural History in New York City.

VOA: special.2010.01.17

So, in 1996, the city began the largest privatisation of a military installation in American history.

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It, obviously, points to one of the most dark and shameful moments in recent past history in our country -- the fact that a major American city went through a natural disaster, and we found almost (ph) little to do.

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And it even dusts off the dinosaur bones at the American Museum of Natural History in New York City.

FORBES: Magazine Article