I´m having problems finding Monero historic prices in USD for my University project. Could someone advise me where to find this data?
See the accepted answer here: https://opendata.stackexchange.com/questions/6884/cryptocurrency-historical-prices
You would have to slightly modify it to get XMR rather than ETH, and then get a BTC v. USD data set over the same time period and figure it out, but I'm not sure there is a better way.
There's really not much price history pre-poloniex, except smooth's OTC thread on bitcointalk and TheKoziTwo's short-lived cryptonote exchange.