Who rule brought great progress including the end of slavery?

The rule of Abraham Lincoln in the United States is often credited with significant progress, particularly through the Emancipation Proclamation in 1863, which declared the freedom of enslaved people in Confederate states. Lincoln's leadership during the Civil War ultimately led to the passage of the 13th Amendment in 1865, which abolished slavery nationwide. His commitment to equality and human rights marked a pivotal moment in American history, fostering greater social progress.