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**Roman numerals**

Roman numerals are used in a variety of Norwegian sources, but it is not difficult to learn this numbering system. Roman numerals are made up by using seven symbols:

I = 1

V = 5

X = 10

L = 50

C = 100

D = 500

M = 1000

Note: The roman numeral system did not include a symbol for 0.

Roman numerals | Arabic numerals | Roman numerals | Arabic numerals | |

... | 0 | L | 50 | |

I | 1 | LI | 51 | |

II | 2 | LII etc. | 52 etc. | |

III | 3 | LX | 60 | |

IV | 4 | LXI | 61 | |

V | 5 | LXII etc. | 62 etc. | |

VI | 6 | LXX | 70 | |

VII | 7 | LXXI | 71 | |

VIII | 8 | LXXII etc. | 72 etc. | |

IX | 9 | LXXX | 80 | |

X | 10 | LXXXI | 81 | |

XI | 11 | LXXXII etc. | 82 etc. | |

XII | 12 | CX | 90 | |

XIII | 13 | CXI | 91 | |

XIV | 14 | CXII etc. | 92 etc. | |

XV | 15 | C | 100 | |

XVI | 16 | CC | 200 | |

XVII | 17 | CCC | 300 | |

XVIII | 18 | CCCC or CD | 400 | |

XIX | 19 | D | 500 | |

XX | 20 | DC | 600 | |

XXI | 21 | DCC | 700 | |

XXII etc. | 22 etc. | DCCC | 800 | |

XXX | 30 | M | 1000 | |

XXXI | 31 | MM | 2000 | |

XXXII etc. | 32 etc. | |||

XL | 40 | |||

XLI | 41 | |||

XLII etc. | 42 etc. |

In the Middle Ages and later, numerals were often written in lower case letters, and j was often used instead of a final i. For example, the number 2 (II) could be written as ij

A line over a letter denotes that it is multiplied by 1000. For example, a V with a line over it means 5,000, and an X with a line over it means 10,000.

**Some sample dates:**

MDC 1600

MDCXXX 1630

MDCC 1700

MDCCL 1750

MDCCLXX 1770

MDCCC 1800

Copyright John Follesdal, Esq.