Sorry, Dominika, but this is not the solution for this problem.
That's a only workaround.

Take a look here: https://appgenix.uservoice.com/knowledgebase/articles/903366-i-am-not-able-to-see-past-and-future-events-in-bc

Very usefull as business, to see dates more than one year in advanced and not to use the very useless google calendar limitation

The App Calengoo shows that it is possible. Here I can bypass the synchronization via Android and give the app direct permission for the Google calendar. Additionally I can choose how many appointments are synchronized into the past.
I will definitely stay with BC2, here everything is just right (design, widgets, feeling). But I would be sooooooo great to be able to view old dates - and above all search in them. That would be fantastic.