Final answer:
Bacon's Rebellion was sparked by attacks from Susquehannock warriors on Virginia's frontier in 1675, one of which directly affected Nathaniel Bacon's own plantation. This incident, compounded with grievances against Governor Berkeley's policies, led Bacon to launch the rebellion.
Step-by-step explanation:
The incident that particularly incited Nathaniel Bacon and ultimately led to Bacon's Rebellion began with a series of attacks in 1675. Susquehannock warriors attacked settlements on Virginia's frontier, which included killing English planters and destroying plantations. One of these plantations belonged to Bacon himself. This event, along with deep seated frustration with Governor William Berkeley's administration, propelled Bacon to lead an insurrection. Fueled by resentment against rigid colonial policies and incessant native clashes, Bacon initiated unauthorized attacks against the Susquehannock, which eventually escalated to the burning of Jamestown in September 1676.