Britannica AI Icon
Adding us as a Preferred Source tells Google you trust our content, so our articles show up more often in your Google Search, Discover feed, and AI Overviews.
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Feedback
Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login).
Thank you for your feedback

Our editors will review what you’ve submitted and determine whether to revise the article.

External Websites

Why is Philadelphia called the City of Brotherly Love?

Philadelphia is called the “City of Brotherly Love” because its name is derived from the Greek words philia, meaning love, and adelphos, meaning brother. The name reflects the ideals of its founder, the Quaker leader William Penn. He founded Philadelphia in 1681 with a vision of creating a place where people could enjoy religious freedom and self-governance. The city’s name was meant to symbolize the concepts of tolerance and community. Penn’s intention was to establish a city that would be a “greene Country Towne,” promoting health and safety, and embodying the principles of peace and harmony among its inhabitants.

The Quaker influence in Philadelphia’s early years played a significant role in shaping its identity. Quakers were known for their pacifism and commitment to equality and social justice. This ethos was reflected in the city’s policies of religious toleration and the right of people to participate in government.