' The world turned upside down' why is this phrase used of the period 1647-50 in England

During 1647-1650 the countrymen of England had been completely astonished. The people had seen their King challenged and beaten in war and court resulting in his execution. Groups were also developing (political factions) wanting to see their political goals achieved. Charles had lost the first civil war but was encouraged spiritually to never give up. This loss he believed was in fact a punishment by God for allowing the death of Strafford so any further …

…have opened in time if Charles had not been killed anyway. Howver with in such a short time scale the amount of events wich took place certainly the people must have thought what could be next which is as catastprohic as the death of King Charles. Arguably they may have thought if somthing as radical as this could have occurred then the radical ideas circulating around this time period could also even be potentially true.