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Ⅱ stands for 2 in mathematical symbols. What does that mean?
Me, 1

Two, two

Three, three

The fourth chapter section 4

Chapter five, section five

Chapter 6, section 6

Chapter 7, section 7

Chapter 8, section 8

Nine, nine

x, 10

XI, 1 1

Twelve, 12

Thirteen, 13

Fourteen, 14

XV. 15

Sixteen, 16

Seventeen, 17

Eighteen, 18

XIX. 19

XX,20

21,21

22, 22

25, 25

29, 29

XXX,30

XXXI,3 1

34, 34

Thirty-five

39, 39

XL,40

l,50

Li, 5 1

Lu, 55 years old

LX,60

Sixty-five

LXX 70

LXXX,80

XC, 90 years old

XCIII,93

XCV,95

XCVIII,98

Integrated circuit, 99

c, 100

CC,200

CCC,300

CD,400

500 dollars

DC,600

DCC,700

DCCC,800

Centimeter, 900

m, 1000

MC, 1 100

MCD, 1400

MD, 1500

MDC, 1600

MDCLXVI, 1666

MDCCCLXXXVIII, 1888

MDCCCXCIX, 1899

MCM, 1900

MCMLXXVI, 1976

Michael XXXIV, 1984

MCMXC, 1990

Well, in 2000.