Letters Archive

Pavlov's Dogs

Pavlov's Dogs
Discover how Russian scientist Ivan Pavlov accidentally discovered classical conditioning and its impact on our behaviors and reactions!

You don't have the fire

You don't have the fire
The world-famous violinist told the young man that he lacked the fire, which changed his life and inspired him to keep pushing through initial difficulties in everything he did.

Claquers

Claquers
In the 19th century, theater managers hired claques to cheer for shows and guide the audience's reaction, but some claques began blackmailing performers, leading to their eventual decline.

Hours and Minutes

Hours and Minutes
This letter highlights how each day of the week is connected to a specific heavenly body, with Monday being associated with the Moon, Tuesday with Mars, and so on, as observed by ancient Babylonians who created the seven-day week.

Months of the year

Months of the year
Discover the fascinating history behind our Gregorian calendar, from its Roman roots to the naming of months and even leap years!

Days of the week

Days of the week
This letter explains the origins and connections between the days of the week, as observed by ancient Babylonians who divided their lunar month into seven parts based on seven celestial bodies in the sky.