What country became the most democratic in the 1800s?

In the 1800s, the United States emerged as one of the most democratic nations, particularly following the expansion of suffrage and the implementation of democratic principles outlined in its Constitution and Bill of Rights. The period saw significant political reforms, including the rise of political parties and greater participation in elections. While many countries began to adopt democratic elements, the U.S. is often highlighted for its early and robust commitment to democratic governance during this era. However, it's essential to acknowledge that these democratic advancements were not equally accessible to all populations, particularly marginalized groups.