Scope

This timeline tracks the rise of national political identities, constitutional conflict, and the consolidation or reorganization of modern states.

Inclusion rule

Include events that materially changed national legitimacy, constitutional order, unification, secession, or the territorial form of states.

Why this timeline exists

The 19th century did not just inherit states. It remade them. Nationalism and state formation set the stage for imperial rivalry, democratic mass politics, and the conflicts that culminated in world war.

Key phases

  • Post-Napoleonic restoration and reaction
  • Liberal and nationalist revolutions
  • Unification and constitutional restructuring
  • Mass politics and organized nationalism
  • Prewar interstate rivalry

Anchor events

Initial seed events to be added.