I want to do my own bitcoin chart.

Would you know any reliable way to retrieve bitcoins historical price data? Is there any way to retrieve it using REST? I saw Bitfloor, which supports REST, but it is not returning any useful value, it has a "internal server error".

I saw also Bitcoincharts, but I think it's limited to 2000 data values.

Would you suggest me any framework or system to work about it?