What is Utrecht's official found date?
50 CE
What two ages can it be traced back to?
Stone Age and Bronze Age
Who decided not to grow northward?
Claudius
What did he do to prevent this?
build fortresses
When was the city eventually abandoned?
Around 275
What was built under the Franks?
a church
What eventually happened to it?
destroyed
What caused it?
ongoing border conflicts
With whom?
the Frisians
What is used to identify the founding of the city?
castellum
What defense was along the river?
Germanicus defense line