Il numero 1643, milleseicentoquarantatré in Italiano, in Inglese si dice one thousand six hundred forty-three.
Il numero ordinale 1643° in inglese si dice one thousand six hundred forty-third.
1634: one thousand six hundred thirty-four
1635: one thousand six hundred thirty-five
1636: one thousand six hundred thirty-six
1637: one thousand six hundred thirty-seven
1638: one thousand six hundred thirty-eight
1639: one thousand six hundred thirty-nine
1640: one thousand six hundred forty
1641: one thousand six hundred forty-one
1642: one thousand six hundred forty-two
1644: one thousand six hundred forty-four
1645: one thousand six hundred forty-five
1646: one thousand six hundred forty-six
1647: one thousand six hundred forty-seven
1648: one thousand six hundred forty-eight
1649: one thousand six hundred forty-nine
1650: one thousand six hundred fifty
1651: one thousand six hundred fifty-one
1652: one thousand six hundred fifty-two