They were allotted a plot of land by the Jirapa Naa (chief) who allegedly wanted to see whether they would be driven out by evil spirits, or vice versa.[6] Despite early conflicts between converts and the local chiefs, and even the resulting disapproval of the British District Commissioner of Lawra, the work was given great impetus by the locally famous 'rain event' of 1932 in which rain fell during a severe drought in the Lawra district, only in Jirapa and in nearby villages following prayer for each case.[7][8] According to government statistics, 42.5% of the population in the district now claim to be Christian, 96.1% of which are Catholic, the remainder being affiliated to either Islam or traditional religion.It is held in the last week of April and marks the end of the ban on harvesting the fruit of the Dawadawa tree (Parkia Biglobosa) and the beginning of the farming season.The name of the town, written in Dagaare as Gyerebaa, is pronounced roughly as jira-‘baa, and means 'reed-stream', i.e. a stream of reeds.