William penn's colony's long-term survival has been attributed to its

Answer;

Ethnicity and religious diversity

Explanation;

William Penn's legacy was religious and spiritual diversity. He believed that no people can be truly happy if abridged of the freedom of their consciences. In a seventeenth-century world conditioned by violence, religious persecution, and arbitrary authority, Penn established an unusual colony dedicated to the principles of religious toleration, participatory government, and brotherly love.

Such a Utopian society had never been attempted in the annals of human history, and its success was reflected by the religious and spiritual diversity that became Pennsylvania's defining characteristic.