Il numero 1851, milleottocentocinquantuno in Italiano, in Inglese si dice one thousand eight hundred fifty-one.
Il numero ordinale 1851° in inglese si dice one thousand eight hundred fifty-first.
1842: one thousand eight hundred forty-two
1843: one thousand eight hundred forty-three
1844: one thousand eight hundred forty-four
1845: one thousand eight hundred forty-five
1846: one thousand eight hundred forty-six
1847: one thousand eight hundred forty-seven
1848: one thousand eight hundred forty-eight
1849: one thousand eight hundred forty-nine
1850: one thousand eight hundred fifty
1852: one thousand eight hundred fifty-two
1853: one thousand eight hundred fifty-three
1854: one thousand eight hundred fifty-four
1855: one thousand eight hundred fifty-five
1856: one thousand eight hundred fifty-six
1857: one thousand eight hundred fifty-seven
1858: one thousand eight hundred fifty-eight
1859: one thousand eight hundred fifty-nine
1860: one thousand eight hundred sixty