sentences:  When the artifact was dated to 88,000 BCE, there was skepticism within the archaeological community about the accuracy of the stated age; in that the object seemed too advanced for human cultures of that era.However, the site has yielded multiple other examples of similar harpoons, and the dates have been confirmed.It seemed to substantiate that fishing and an "aquatic civilization" was likely in the region across eastern and northern Africa during the wetter climatic conditions of the early to mid-Holocene, as shown by other evidence at the lakeshore site of Ishango.