I've read one of Candida Moss' recent books and her research is difficult to dispute, so I'm inclined to go along with her support of the arguments of other scholars' she's reviewed:
"Most of the historical evidence for Nero persecuting Christians comes to us from the writings of the Roman historian Tacitus, who wrote between 115-120 CE, at least fifty years after the events he was describing.
In his recent Journal of Roman Studies article “The Myth of the Neronian Persecution,” distinguished Princeton classicist Brent Shaw has argued that Tacitus’s story is a later fabrication.
Shaw points out that there are no references to Christians in the writings of any Roman historians prior to Tacitus. Cassius Dio, another Roman historian who discusses the Great Fire, never mentions the Christians at all, and other later Roman sources that do mention the fire are entirely dependent on Tacitus. Suetonius, the only other second-century Roman writer to mention the mistreatment of Christians by Nero, does not connect these punishments with the Great Fire."
During the night of July 18, 64 AD, fire broke out in the merchant area of the city of Rome. Fanned by summer winds, the flames quickly spread through the dry, wooden structures of the Imperial City. Soon the fire took on a life of its own consuming all in its path for six days and seven nights. When the conflagration finally ran its course it left seventy percent of the city in smoldering ruins.
Rumors soon arose accusing the Emperor Nero of ordering the torching of the city and standing on the summit of the Palatine playing his lyre as flames devoured the world around him. These rumors have never been confirmed. In fact, Nero rushed to Rome from his palace in Antium (Anzio) and ran about the city all that first night without his guards directing efforts to quell the blaze. But the rumors persisted and the Emperor looked for a scapegoat. He found it in the Christians, at that time a rather obscure religious sect with a small following in the city. To appease the masses, Nero literally had his victims fed to the lions during giant spectacles held in the city's remaining amphitheater.
From the ashes of the fire rose a more spectacular Rome. A city made of marble and stone with wide streets, pedestrian arcades and ample supplies of water to quell any future blaze. The debris from the fire was used to fill the malaria-ridden marshes that had plagued the city for generations.
The Horror of Fire
The historian Tacitus was born in the year 56 or 57 probably in Rome. He was in Rome during the great fire. During his lifetime he wrote a number of histories chronicling the reigns of the early emperors. The following eye witness account comes from his final work The Annals written around the year 116.
"...Now started the most terrible and destructive fire which Rome had ever experienced. It began in the Circus, where it adjoins the Palatine and Caelian hills. Breaking out in shops selling inflammable goods, and fanned by the wind, the conflagration instantly grew and swept the whole length of the Circus. There were no walled mansions or temples, or any other obstructions, which could arrest it. First, the fire swept violently over the level spaces. Then it climbed the hills - but returned to ravage the lower ground again. It outstripped every counter-measure. The ancient city's narrow winding streets and irregular blocks encouraged its progress.
Terrified, shrieking women, helpless old and young, people intent on their own safety, people unselfishly supporting invalids or waiting for them, fugitives and lingerers alike - all heightened the confusion. When people looked back, menacing flames sprang up before them or outflanked them. When they escaped to a neighboring quarter, the fire followed - even districts believed remote proved to be involved. Finally, with no idea where or what to flee, they crowded on to the country roads, or lay in the fields. Some who had lost everything - even their food for the day - could have escaped, but preferred to die. So did others, who had failed to rescue their loved ones. Nobody dared fight the flames. Attempts to do so were prevented by menacing gangs. Torches, too, were openly thrown in, by men crying that they acted under orders. Perhaps they had received orders. Or they may just have wanted to plunder unhampered.
Nero was at Antium. He returned to the city only when the fire was approaching the mansion he had built to link the Gardens of Maecenas to the Palatine. The flames could not be prevented from overwhelming the whole of the Palatine, including his palace. Nevertheless, for the relief of the homeless, fugitive masses he threw open the Field of Mars, including Agrippa's public buildings, and even his own Gardens. Nero also constructed emergency accommodation for the destitute multitude. Food was brought from Ostia and neighboring towns, and the price of corn was cut to less than ¼ sesterce a pound. Yet these measures, for all their popular character, earned no gratitude. For a rumor had spread that, while the city was burning, Nero had gone on his private stage and, comparing modern calamities with ancient, had sung of the destruction of Troy.
By the sixth day enormous demolitions had confronted the raging flames with bare ground and open sky, and the fire was finally stamped out at the foot of the Esquiline Hill. But before panic had subsided, or hope revived, flames broke out again in the more open regions of the city. Here there were fewer casualties; but the destruction of temples and pleasure arcades was even worse. This new conflagration caused additional ill-feeling because it started on Tigellinus' estate in the Aemilian district. For people believed that Nero was ambitious to found a new city to be called after himself.
Of Rome's fourteen districts only four remained intact. Three were leveled to the ground. The other seven were reduced to a few scorched and mangled ruins."
Duruy, Victor, History of Rome vol. V (1883); Grant, Michael (translator), Tacitus, The Annals of Imperial Rome, (1989)
To the victor go the spoils - and one of those spoils is to write "history" the way you want it to read. Yes the excesses of the Christian church are legendary and most certainly include rewriting history (and the bible, and selecting which books are "in" and which are "out"). Kinda like the Muslims are doing now!
Nero has been accused of a lot of things over the history of time, but he has been given credit for some amazing successes.
Lourival de Freitas in Brazil, who in his great days, was presented as “the supernatural genius” by the popular press. Doctors, lawyers, judges, journalist, famous politicians, government ministers, businessmen and industrialists, high-ranking army and police officers and of course many humble people went to the great thaumaturge of Cavalcanti (a suburb of Rio de Janerio) where de Freitas was supposed to be capable of solving moral and political problems, of revealing the hidden secrets of peoples’ lives, of making or unmaking marriages, of performing the most difficult surgical operations through the help of the spirit of the Roman emperor Nero.
Nero was pretty popular in his day before he descended into the pit.