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Infrastructure completed in 1820
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This
category
is for
infrastructure
completed in the
year
1820
.
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1770s
1780s
1790s
1800s
1810s
1820s
1830s
1840s
1850s
1860s
1870s
Subcategories
This category has only the following subcategory.
T
Transport infrastructure completed in 1820
(4 C)