How far back does 1D "Bars" go?

I’ve been writing GET requests to pull data via the “Bars” query:

The docs state a maximum of 1000 bars per symbol and 200 symbols per query. However, nothing is written about how far back daily data go.

When I use either my paper/live API keys it looks like I can only go back ~2 years for “1D” data.

  1. Is this correct?
  2. What is a good cheap alternative source of daily OHLC & Volume data?