Fun Holidays on April 26

Fun Holidays on April 26 – Richter Scale Day, Pretzel Day, World Pinhole Photography Day

Seismograph for measuring tremors.
Richter Scale Day
Richter Scale Day is an unofficial holiday dedicated to the work of seismologist Charles Francis Richter.
A woman buying from a street vendor in Ermou Street, downtown Athens.
Pretzel Day
Pretzel Day is a made-up holiday devoted to everyone’s favorite snack with beer – pretzels.
Pinhole photography negatives.
World Pinhole Photography Day
World Pinhole Photography Day on the last Sunday of April celebrates the art and science of pinhole cameras and photography.