War in the Vendée was not until the social unrest and the fear of The Terror (a period between 1793–94 where tens of thousands of people were beheaded by use of guillotine) combined with the external pressures from the Civil Constitution of the Clergy (1790) and the introduction of a levy of 300,000 on the whole of France, decreed by the National Convention in February 1793, that the region erupted. The Civil Constitution of the Clergy required all clerics to swear allegiance to it and, by extension, to the increasingly anti-clerical National Constituent Assembly. All but seven of the 160 bishops refused the oath,
Reign of Terror (Sleigh Bells album) satisfied.' I heard it and I thought, 'We didn't have to stop recording—we could do this, this, and this, right now.' So I feel like we made a very good record, but I want very much to continue to the next phase of our development," Krauss said. A few unused demos and ideas from the "Reign of Terror" sessions, such as the instrumental track used in the album's trailer, could become part of the band's third studio album. The cover art for "Reign of Terror" features a dirty, bloody pair of white Keds shoes. The pair of shoes belongs to