Category:1800 in the environment
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202:This category has only the following subcategory.
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49:human impact on the environment
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32:These articles relate to the
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219:Species described in 1800
249:1800s in the environment
65:environmental issues
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57:nature conservation
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238:Categories
40:the year
223:(3 C)
188:1850s
183:1840s
178:1830s
173:1820s
168:1810s
162:1800s
156:1790s
151:1780s
146:1770s
141:1760s
136:1750s
254:1800
125:1805
120:1804
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100:1800
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75:1795
63:and
42:1800
38:in
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