Il numero 1812, milleottocentododici in Italiano, in Inglese si dice one thousand eight hundred twelve.
Il numero ordinale 1812° in inglese si dice one thousand eight hundred twelfth.
1803: one thousand eight hundred three
1804: one thousand eight hundred four
1805: one thousand eight hundred five
1806: one thousand eight hundred six
1807: one thousand eight hundred seven
1808: one thousand eight hundred eight
1809: one thousand eight hundred nine
1810: one thousand eight hundred ten
1811: one thousand eight hundred eleven
1813: one thousand eight hundred thirteen
1814: one thousand eight hundred fourteen
1815: one thousand eight hundred fifteen
1816: one thousand eight hundred sixteen
1817: one thousand eight hundred seventeen
1818: one thousand eight hundred eighteen
1819: one thousand eight hundred nineteen
1820: one thousand eight hundred twenty
1821: one thousand eight hundred twenty-one