英文论文的抄袭问题？

我的英文毕业论文写的是黑人白人的事情，有些历史背景或者影视作品的PLOT从维基百科上复制下来的，较少，一般都是30-100，这种对历史客观的复制算不算抄袭呢？
比如
In the American Revolution, black Americans, both enslaved and free, helped rebellious English colonists secure American Independence by defeating the British in the American Revolution. James Armistead, an African American, played a large part in making possible the 1781 Yorktown victory, which established the United States as an independent nation.

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