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| | 4 (number) -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-29) |
 | | The (Click link for more info and facts about Sunga) Sunga and other Indians would add a horizontal line on top of the numeral, and the Kshatrapa and Pallava evolved the numeral to a point where speed of writing was at best a secondary concern. |
 | | The Europeans dropped off the finishing curve and gradually made the numeral less cursive, ending up with a glyph that could have evolved in a much simpler way than the convoluted route it actually took: by simply taking the Brahmin cross and adding a line to connect its "western" and "northern" ends. |
 | | Wide use of (A parallelogram with four right angles) rectangles (with four angles and four sides) because they have effective form and capability for close adjacency to each other (houses, rooms, tables, bricks, sheets of paper, screens, film frames). |
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