1789' The term 'Planetary Revolution' refers to the period of time in 1789 when the French Revolution began. This period of time was marked by a series of political and social upheavals that had a lasting impact on the world. The French Revolution was a major turning point in history, as it led to the overthrow of the monarchy and the establishment of a new government based on the principles of liberty, equality, and fraternity. The effects of the revolution were felt throughout Europe and beyond, and its legacy continues to shape the world today.