道どう光こうどうこうMeanings1nounDaoguang era (1820-1850)historical termHistorical Chinese era name from the Qing dynasty, corresponding to the reign of Emperor Xuanzong.道どう光こう年ねん間かんにアヘン戦せん争そうが起おこった。The Opium War occurred during the Daoguang era.
