According to evidence found by scientists, where did old stone age people travel across open ocean in rafts or canoes

According to evidence the Old Stone Age people traveled from Southeast Asia to Australia in the canoes or rafts across open sea with no navigation systems present. This was around 70,000 years ago and signifies the great courage and technical edge of the people in that time. 

the catholic church withhold people's access to the bible during the middle ages.

people could go to church and listen to the teachings, but it was absolutely forbidden to own and/or read the books of both the old and new testaments. it was also prohibited to translate the books (which where originally in biblical hebrew) to any other language.

this was done so the church could remain in control of what their teachings were and to enhance their importance and power, while also being able to judge people's actions through information that was unavailable for the general public.