In 2009, the U.S. House of Representatives passed “H.Res.224 - Supporting the designation of Pi Day...”
“Whereas Pi can be approximated as 3.14, and thus March 14, 2009, is an appropriate day for ’National Pi Day’: Now, therefore, be it Resolved, That the House of Representatives—
(1) supports the designation of a ’Pi Day’ and its celebration around the world;
(2) recognizes the continuing importance of National Science Foundation’s math and science education programs; and
(3) encourages schools and educators to observe the day with appropriate activities that teach students about Pi and engage them about the study of mathematics.”
Source: 2021 American Community Survey (ACS) 1-year estimates.
Note: The table above is modified to hide the margin of error columns and highlight in yellow the computer, engineering, and science occupations. Click on the image for the full table. Click on the Geography tab for other geographies such as “State,” then “All States in United States.”
Note: The cropped table above contains detailed occupations that use “pi,” such as mathematicians, statisticians, engineers, and architects. Click on the image for the full table.
Source: Quarterly Financial Report (QFR) 2010-2023.
Source: Quarterly Services Survey (QSS) 2007-2023.
Source: 2020 Annual Business Survey (ABS) Program.
Source: 1978-2020 Business Dynamics Statistics (BDS).
Source: 2020 County Business Patterns (CBP).
Source: 2019 Nonemployer Statistics (NES).
Various U.S. Census Bureau products related to Science, Technology, Engineering and Math (STEM) by date of release: