can someone advise re the following please.

1. Is the discovery of America time restricted, ship restricted or can you set off at any time west.

2. Why are my 8/9 * bishops being overlooked for cardinal by 6/7* priests. Is there a quota system or is it favours for the in crowd.

3. Why am I getting religous unrest in a region 100% catholic with no heretics or other religons present.

4. How do you combat squaler apart from the civil line of buildings

5. When you repulse a seiging army how do you get rid of the crappy line relations with (whoever) are abysmal. Of course they are you have just attacked me