A Treasure from Our Past: How Does the Indian Calendar System Work?

Indian Panchang, ancient astronomy books, and symbols of solar and lunar calculations

Discover how the traditional Indian calendar system works, from the Shaka Era and Panchang to lunar and solar calendars, Adhik Maas, and the astronomical knowledge behind India’s rich timekeeping traditions.

The History of Clocks: An Incredible Journey from Shadows to Atomic Timekeeping

Illustration showing the evolution of timekeeping from ancient sundials to modern atomic clocks.

How did humans go from reading the Sun’s shadow to measuring time with atoms? Explore the fascinating history of clocks, from ancient sundials and water clocks to quartz watches, GPS and atomic timekeeping.

History of Birthday: Why, How and When Did We Start Celebrating Birthdays?

​history of birthday - Collage showing the history of birthday celebrations from ancient Egypt, Greece, Rome, and India to modern birthday cakes.

Explore the thousands-of-years-old history of birthdays—from Egyptian Pharaohs and Greek moon offerings to traditional Indian Aukshan, German Kinderfest, and the origin of the “Happy Birthday” song.