Fig. 1
From: Dating historical droughts from religious ceremonies, the international pro pluvia rogation database

Examples of documentary sources: (a) Chapter act from Quito (5th February 1774), (b) Casa mayor’s private diary40 (27th April 1783), (c) Procesión de rogativa por falta de lluvias del Santo Crucifijo de San Agustín, ante el Ayuntamiento de Sevilla [Rogation procession by the lack of rainfalls of the Saint Agustine holy crucifix in front of Seville city council], ca. 1737, anonymous, oil on canvas41, and (d) El Corresponsal newspaper (12th March 1841).