Last updated on April 15th, 2022
References:
- https://www.dkfindout.com/us/science/amazing-inventions/wheel/
- https://www.britannica.com/topic/flag-of-India
- https://www.jagranjosh.com/general-knowledge/what-is-the-meaning-of-24-spokes-of-ashok-chakra-1502342983-1
- https://www.gardenstreet.co.uk/blog/history-of-wheelbarrows/
- https://www.thereporter.com/2015/04/20/the-wheel-is-the-most-important-invention-ever/
- https://www.smithsonianmag.com/science-nature/a-salute-to-the-wheel-31805121/