History has to be taught as it's read from records, because we DO NOT know the full truth ........ it was recorded and written in a biased way obviously, through the eyes of either the victors or losers so their word has to be taken ........ besides which history teaching should begin with local stuff then 'fan out' to more widespread detail, there are some things because of stupid political correctness that are taboo to mention, so you have to lie and distort what may have been the reality