Fig. 4From: Severe weather disasters to epidemics in China during low and high solar activities from 1 to 1911 Common EraEpidemic occurrence percentages of months and seasons in the overall, costal, inland, Northern and Southern areas. The lunar month of 1–12; solar month of January–December; and seasons of spring (greed bars), summer (pink bars), autumn (yellow bars), and winter (blue bars) are presentedBack to article page