International Left-Handers Day is celebrated on August 13 annually to celebrate the differences and uniqueness of the left-handers. The day was first observed by Dean R. Campbell, founder of the Lefthanders International, Inc in 1976. This day was created to raise awareness of the disadvantages and advantages of being left-handed in a predominantly right-handed world. International Left-Handers Day celebrates left-handed peoples' differences and uniqueness, a subset comprised of seven to ten per cent of the world's population.

International Left-Handers Day by Dean R. Campbell also highlights issues faced by left-handers. There are approximately 708 million left-handed people in the world and this day is dedicated to them. Netizens took to the social media platform, Twitter to celebrate International Left-Handers Day and all the left-handed people across the globe.