Belgian astronomer, mathematician, and statistician who founded the Brussels Observatory and introduced statistical methods to the social sciences

Visionary French historian who authored the monumental Histoire de France and popularized the historical concept of the Renaissance, emphasizing the role of common people and cyclical history

German liberal Protestant theologian known for his portrayal of the "historical Jesus" through myth, influencing Christian Europe with his writings and philosophical inquiries

13th President of the United States, instrumental in the Compromise of 1850, and the last Whig Party president

Swedish physicist and astronomer, recognized as a founder of spectroscopy and known for his work on the solar spectrum

French historian, orator, and statesman who was a dominant figure in politics between the Revolution of 1830 and 1848, also known for his extensive writings