David Livingstone's Secret of a Successful Life

Some people are household names in their generation. George Whitefield, the famous British evangelist  was probably the most famous celebrity of the 18th century (even more so than George Washington).

Billy Graham is arguably the most well-known and respected personality of the 20th century because of his evangelistic ministry that spanned the globe. Mother Theresa is probably the 20th century's most famous woman.

These three all possessed two similar traits that were secrets to their earthly success.

Do you know who was the most famous person of the in-between century--the 19th century (1800-1900)?

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