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Counting & Dating
(Latin Style)

The Greeks used their alphabet for numbers (see here), but the Romans used symbols, like in this small list. Remember that Romans were in many things not as strict as we are, so for example IV and IIII were both used. Had they know the 0 (zero (an arab invention)), who knows how much further they might have come :

Ps : For Dating (coins !) Click Here

1 I 10 X 100 C
2 II 20 XX 101 CI
3 III 30 XXX 150 CL
4 IV (IIII) 40 XL 200 CC
5 V 50 L 300 CCC
6 VI 60 LX 400 CD
7 VII 70 LXX 500 D
8 VIII 80 LXXX 1,000 M
9 IX (VIIII) 90 XC    
 

Then ofcourse there is more than just scribbling X's ...

 
  Cardinal Ordinal
1 unus, -a, -um primus, -a, -um
2 duo, duae, duo secundus, -a, -um
3 tres, tres, tria tertius, -a, -um
4 quattuor quartus, -a, -um
5 quinque quintus, -a, -um
6 sex sextus, -a, -um
7 septem septimus, -a, -um
8 octo octavus, -a, -um
9 novem nonus, -a, -um
10 decem decimus, -a, -um
11 undecim undecimus, -a, -um
12 duodecim duodecimus, -a, -um
13 tredecim tertius decimus (-a, -um)
14 quattuordecim quartus decimus (-a, -um)
15 quindecim quintus decimus (-a, -um)
16 sedecim sextus decimus (-a, -um)
17 septendecim septimus decimus (-a, -um)
18 duodeviginti duodevicesimus, -a, -um
19 undeviginti undevicesimus, -a, -um
20 viginti vicesimus, -a, -um
21 viginti unus vicesimus primus (-a, -um)
22 viginti duo vicesimus alter (-a, -um)
23 viginti tres vicesimus tertius (-a, -um)
24 viginti quattuor vicesimus quartus (-a, -um)
25 viginti quinque vicesimus quintus (-a, -um)
26 viginti sex vicesimus sextus (-a, -um)
27 viginti septem vicesimus septimus (-a, -um)
28 duodetriginta duodetricesimus, -a, -um
29 undetriginta undetricesimus, -a, -um
30 triginta tricesimus, -a, -um
40 quadraginta quadragesimus, -a, -um
50 quinquaginta quinquagesimus, -a, -um
60 sexaginta sexagesimus, -a, -um
70 septuaginta septuagesimus, -a, -um
80 octoginta octogesimus, -a, -um
90 nonaginta nonagesimus, -a, -um
98 duodecentum duodecentesimus, -a, -um
99 undecentum undecentesimus, -a, -um
100 centum centesimus, -a, -um
101 centum et unus centesimus primus (-a, -um)
102 centum duo centesimus alter (-a, -um)
110 centum decem centesimus decimus (-a, -um)
200 ducenti, -ae, -a ducentesimus, -a, -um
300 trecenti, -ae, -a trecentesimus, -a, -um
400 quadrigenti, -ae, -a quadringentesimus, -a, -um
500 quingenti, -ae, -a quingentesimus, -a, -um
600 sescenti, -ae, -a sescentesimus, -a, -um
700 septingenti, -ae, -a septingentesimus, -a, -um
800 octingenti, -ae, -a octingentesimus, -a, -um
900 nongenti, -ae, -a nongentesimus, -a, -um
1000 mille millesimus, -a, -um
1001 mille et unus millesimus primus (-a, -um)
2000 duo milia bis millesimus, -a, -um
3000 tria milia ter millesimus, -a, -um
10000 decem milia decies millesimus, -a, -um
 
Hey, still there ? :-)
 
When talking about dates in coins the Latin provincial counterpart of the empire sometimes used AN followed by roman numerals (see here and here). The AN, meaning ANNVS, stood for the years passed since it had obtained its status as Colonia or Provincia, or acquired the right to bear coins. As far as my  limited knowledge goes this was only used for the city of Viminacium and the province of Dacia.

 

That's All Folks !

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