The concept of Separation of Powers emerged as a fundamental principle during the French Revolution. This principle was heavily influenced by Enlightenment thinkers, particularly Montesquieu, whose work "The Spirit of Laws" (published in 1748) argued for dividing government functions into three branches: the executive, legislative, and judicial. The goal was to prevent tyranny by ensuring no single entity could monopolize power. During the French Revolution, the National Assembly (established in 1789) played a crucial role in dismantling the absolute monarchy and implementing the Separation of Powers. The 1791 Constitution of France marked the first attempt to formally organize the government based on this principle. The document outlined a clear division: the King (executive power), a Legislative Assembly (legislative power), and independent courts (judicial power). The Legislative Assembly was given the authority to create laws, declare war, and oversee the administration. Its members were elected by active citizens (property holders who paid a certain amount of taxes), reflecting a shift towards representative governance. The King retained limited powers, such as enforcing laws and appointing ministers. However, his authority was significantly curtailed compared to the ancien régime (the political and social system in France before the Revolution), where monarchs wielded almost absolute control. Despite these provisions, the practical application of the Separation of Powers encountered difficulties. Tensions between the King and the Assembly (stemming from differing visions of governance) often resulted in political instability. The King's veto power (though intended as a check on legislative excesses) became a point of contention. This tension reached a climax with the king’s failed attempt to flee Paris in 1791 (known as the Flight to Varennes), which further eroded trust in the monarchy. The erosion of the monarchy's power culminated in the insurrection of 10 August 1792, when revolutionaries stormed the Tuileries Palace. This event led to the suspension of the King and the eventual abolition of the monarchy on 21 September 1792. Subsequently, the French Republic was proclaimed, underscoring the Revolutionary commitment to a government without monarchical influence. The Revolutionary period saw several iterations of the government structure. The National Convention (which replaced the Legislative Assembly) and the later Directory (established in 1795) both embodied different versions of the Separation of Powers. However, these bodies often navigated internal divisions and external threats, leading to instances where certain branches overstepped their bounds. Overall, the French Revolution's introduction of the Separation of Powers marked a significant departure from centralized monarchical rule. Despite its challenges and evolving implementations, the principle laid the groundwork for modern democratic governance in France and significantly influenced political thought worldwide.