The First Wizarding War refers to the period of widespread conflict that began around 1970 and concluded on 31 October 1981. The war was instigated by Lord Voldemort and his followers, the Death Eaters, who sought to overthrow the Ministry of Magic and establish a new world order based on pure-blood supremacy. The primary opposition was led by Albus Dumbledore and his secret organization, the Order of the Phoenix, alongside the Ministry of Magic itself. The era was characterized by a climate of terror, disappearances, and open warfare, ending abruptly with Lord Voldemort's first downfall when his Killing Curse rebounded upon him after he murdered James and Lily Potter and attempted to kill their infant son, Harry Potter.
The war did not have a formal beginning but escalated throughout the 1970s as Lord Voldemort gathered followers and began his campaign of terror.
Voldemort's disappearance led to mass celebrations across the wizarding world. Harry Potter was hailed as a hero, becoming known as “The Boy Who Lived.” In the ensuing chaos, many Death Eaters were rounded up and imprisoned in Azkaban, such as Bellatrix Lestrange and Barty Crouch Jr., who were captured after torturing the Longbottoms into insanity. Others, like Lucius Malfoy, claimed they had been acting under the Imperius Curse and evaded justice. In one of the war's final tragedies, Sirius Black was framed by Peter Pettigrew for betraying the Potters and for murdering Pettigrew and twelve Muggles. Black was sent to Azkaban without a trial, while Pettigrew escaped and went into hiding. The end of the war ushered in a decade of peace, but also a sense of complacency that would later hinder the Ministry's response to Voldemort's eventual return.
The war claimed countless lives. Notable victims mentioned in the novels include: