相传,在公元228年农历六月,三国时期的蜀国丞相诸葛亮率兵在四川西南屯田垦荒时,当地正在流行疟疾,给军民造成很大损失。通过考察,诸葛亮发现,所谓的疟疾病源是由热带森林里潮湿的热气形成的瘴气。唯一的办法就是在开垦前用篝火驱散瘴气。 为了融洽军队同西南各民族的关系,避免不必要的纠纷,诸葛亮想利用这次驱瘴的机会,让当地人心悦诚服地接纳蜀军。他就故弄玄虚, According to legend, during the Lunar New Year in 228 AD, the Zhuge Liang, the prime minister of the Three Kingdoms period, led the endemic malaria epidemic in the southwest of Sichuan Province, causing great losses to the army and the people. Through the investigation, Zhuge Liang found that the so-called malaria origin is caused by damp heat in tropical forests. The only way is to use bonfire to disperse belching before reclamation. In order to harmonize the military’s relations with the various ethnic groups in the southwest and avoid unnecessary disputes, Zhuge Liang wanted to take advantage of this opportunity to persuade the locals to accept Shu army with sincerity. He just got rid of mystery,