Which came first the metric system or american standard?

My dad and I have a disagreement about which came first the metric system or american standard.Could anyone please help.Please give evidence.Thanks.|||Wikipedia says that the Metric system has been around since 1791 (http://en.wikipedia.org/wiki/Metric_syst鈥?/a> The American system is derived from the British imperial measurements, which weren't even around until 1824 (http://en.wikipedia.org/wiki/Imperial_un鈥?/a>





So the Metric system is older.|||metric. europe used it. america came from europe and wanted to be different so made the standard. standard is stupid.|||I would think metric considering America is the only country that does not use metric.