Later, art historian Hermann Goetz (1969) devised a historical reconstruction supporting Kalhana's account, although he admitted that "this reconstruction cannot claim to be more than a working theory trying plausibly to interconnect the sparse and uncertain data". Goetz argued that Kalhana's account of Lalitaditya's military exploits is not only probable, but also supported by other evidence. According to Goetz, Lalitaditya's extensive conquests were possible because the other contemporary kingdoms in the region had been weakened by foreign invasions and wars. In addition, Goetz speculated that Lalitaditya managed to create a powerful army as a result of superior China-influenced military organization, administrative set-up and weaponry. Goetz identified several persons mentioned in Kalhana's account as historical figures, and argued that a distant writer like Kalhana could not have invented such historical persons.