Speaking is the only one on that list not generally considered a technology. Every human civilisation we know about has developed spoken language. It seems to b

Speaking is the only one on that list not generally considered a technology. Every human civilisation we know about has developed spoken language. It seems to be built in to us. Writing has only been independently invented a few times in history, as far as we know. Some historians reckon that map-making came before written language and it was that which had the largest impact.