Source: Zeno’s Stoa
Category: occasions
Ways the world improved in 2018, in charts
Happy Mole Day (Chemistry / Science)
Celebrated annually on October 23 from 6:02 a.m. to 6:02 p.m., Mole Day commemorates Avogadro’s Number (6.02 x 1023).
Source: What is Mole Day?
Happy mother’s day
