Fill the historical gap

1 answer to the question: because Lincoln personally drafted the draft emancipation proclamation. During his tenure, he officially promulgated the Emancipation Declaration, announcing that slavery would be abolished from now on and slaves would be free.

Answer to question 2: Russian serfdom reform in 186 1.

Answer to question 3: Meiji Restoration. Measures: abolish vassal counties (role: eliminate feudal regime and strengthen centralization), abolish feudal identity system and abolish samurai privileges.

Answer to question 3: to achieve equality for all, deepen reform, learn from advanced countries and so on.