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Andrews, E. (2019, January 3). What Is the Origin of the Heart Symbol? HISTORY. Retrieved February 9, 2022, from https://www.history.com/news/what-is-the-origin-of-the-heart-symbol

Davis, M. (2021, September 30). Why doesn’t the heart shape look like an actual heart? Big Think. Retrieved February 9, 2022, from https://bigthink.com/health/why-heart-shape-symbolizes-love/

Fieldhouse, L. (2018, October 15). The origin of the heart symbol. Laura Fieldhouse. Retrieved February 9, 2022, ...