Translation of oscuridad

In the that time of the year, when I used to go to school, I had to get up very early and leave the house at around seven o'clock in the morning. At this time it was still night, dark and cold outside.
Moreover, these conception goes with generations, it is almost biologically inherited, they are path from parent to child. As a result the a child has similar believes as his father or mother.
The city was incredibly vivid and we were impressed by its size. We walked a lot through all the different neighborhoods, starting with Recoleta, an upper class neighborhood with its famous cemetery.