Can I get historical data for my Facebook page?
When you add your Facebook page to your Iconosquare account, we can usually pull in the individual post-level data right back to the beginning of your Facebook page - yay!
For Global data, such as Reach and Impressions, this is limited to 90 days prior to the date when you added your Facebook page to Iconosquare, as this is the extent of the data available on the Facebook API.