Mole Day 1929

Wednesday, 23 October 1929

Mole Day is a celebration of chemistry observed on 23 October, honouring Avogadro's number (6.02×10²³) and encouraging interest in science through educational activities and events.

Frequently asked questions

When is Mole Day 1929?
Mole Day 1929 is on Wednesday, 23 October 1929.
What day of the week is Mole Day 1929?
It falls on Wednesday.
How is Mole Day calculated?
This event is observed every year on 23 October.