2 is a number in the Arabic Numeral System—the most widely used numeral system in the world. Along with the letters E, S, W and the number 3, the number 2 sponsored the first episode of Sesame Street. Furthermore, the number 2, along with the letter D, sponsored the first Sesame Street test show.
Songs about 2
Sketches about 2
Plaza Sésamo Segments
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