On this day in 1988, Larry Shaw, a physicist at the San Francisco Exploratorium, led the first observance of Pi Day with staff and public marching around one of its circular spaces, then consuming fruit pies. The now annual celebration commemorating the mathematical constant π (pi) is observed on March 14 (or 3/14 in the U.S.) since 3, 1, and 4 are the three most significant digits of π in the decimal form.

Frances Boltz Woodward, made this Mathematical Star quilt around 1840 in Virginia. The hand pieced, appliqued and quilted piece is now in the permanent collection of the DAR Museum.

View this quilt on The Quilt Index to find out! Read more about its history, design and construction. Be sure to use the zoom tool for a detailed view or click the “See full record” link to see a larger image and all the data entered about that quilt.


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Posted by Amy E. Milne
Executive Director, Quilt Alliance