Roman numerals
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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.