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28 July 2018
23 July 2012
30 July 2011
25 July 2011
→Visual Numerals in Turtle Art: Displaying Heqat Numerals as text
+129
→Mayan base 20 numerals: Minor correction, move link
m+4
Rearrange
m→Teaching the Turtle Visual Numerals: Fix link, add link
m+129
24 July 2011
23 July 2011
21 July 2011
20 July 2011
→Origins of numerals: Minor edit
m+20
→Origins of numerals: Rearrange
m→Origins of numerals: Fix link
m+1
→Origins of numerals: Link to program page
+120
→Origins of numerals: Clarify; add TA illustration
+771
→Unicode character ranges and fonts: New section for fonts
+1,438