Amazon: Pi Day by Amazon

Mathematicians, engineers and scientists may be very familiar with π (Pi), but did you know there was a full day-long celebration of the irrational number? To mark this year’s festivities, Amazon Science took over Times Square to honor the iconic people who have accomplished so much in the scientific sector – past, present and future.

Observed on March 14 – since 3, 1 and 4 are the first three significant digits of π – Pi Day was first acknowledged in 1988, with the day often involving eating lots of pie and holding various math competitions.

The out-of-home (OOH) activation paid homage to the likes of Marie Curie, who was the first woman to be awarded a Nobel Prize in 1903 for her contributions to physics; Katherine Johnson, who did the trajectory analysis for NASA’s Friendship 7 before it launched in 1962; and Albert Einstein, who was coincidentally born on Pi day in 1879.