Danny Silk Math of the Maya

| + | = ? !

Goals for the !Next 6 Minutes!

What is today’s date?!

2013 = Myth or Reality?!

Who Are the Maya, Anyway?!

MATH!

"ZEROES ARE IN!POINTS:!

SO ARE ONES AND FIVES!

AND TWENTIES!

AND VERTICAL ALIGNMENTS!"...USUALLY!

The “Ones” Place!

2 + 2 = 4

+ =!

| + | = ?!

5 + 5 =10!

20! ? !

Base 10 Base 20!

1,000,000 100,000

10,000 1,000 !

100!10 !

1!

64,000,000!3,200,000!

160,000!8,000!

400!20!

1!

(Decimal) (Vigesimal)!

1! 20!400!

202!

201!

200!

203!

204!

205!

206!

1! 20!400!8k!160k!3.2M!64M!

202!

201!

200!

203!

204!

205!

206!

5 x 1!0 X 20

2 x 400!

805

The Calendar System!There are three!

Tzolk’in: 260 days !

(20 days x 13 months)!

Used in order to plan rituals!

Haab: 365 days deterined by

solar cycle!

Long Count!(Long story)!

Calendar Round!

Tzolk’in = 260 days !Haab = 365 days !

Takes about 52 years to repeat!

(No world-ending consequences.)!

Calendar Round!

TODAY:!

Tzolkin: 8 Ik !

Haab: 10 Yak!

The Calendar Round date is determined by 4 factors:!

1) A cycle of 13 numbers, as part of the tzolk’in !

2) A cycle of 20 day names, as part of the tzolk’in !

3) A cycle of 18 months + a 5 day addition, as part of the haab!

4) A cycle of 20 numbers (0-19), as part of the haab!

20 K’ins (day) "= 1 Winal!18 Winal " "= 1 Tun (360 days)!20 Tun " "= 1 Ka’Tun (‘decade’)!20 Ka’Tun "= 1 Baktun (‘century’)!20 Baktun "= 1 Pictun !20 Pictun "= 1 Calabtun !20 Calabtun "= 1 Kinchiltun !20 kinchiltun "= 1 Analtun (64 million years)

Long Count !

Today’s Long Count: 12.19.18.14.2!

So what’s the deal with 2012, anyway?!

13

One number to blame:!

.0.0.0.0!

Last Great Cycle!

Last Great Cycle: 13 August 3114 BC !

Great Cycle last 13 baktuns-!" " " " or 5,125.36 years.!

December 21, 2012: 13.0.0.0.0!

Michael D. Coe

WHEN IS THIS !EVER RELEVANT?!

5 x 400 = 2000!

0 x 20 = 0 !

12 x 1 = 12

Danny Silk

Thank You!