I am looking for historical ether prices. There was a thread already discussing this [enter link description here](https://ethereum.stackexchange.com/questions/635/ether-historical-prices/10742#10742), however, I would like to get not only the prices available for Ether on Poloniex but also for other VCs (e.g. BTC, LTC) to USD. In the end the web output should look like the output in the other thread. It looks like [this](https://poloniex.com/public?command=returnChartData&currencyPair=BTC_%5C%20ETH&start=1435699200&end=9999999999&period=14400).
Can someone please help me?

Thank you in advance!