History
- Around 47 AD, the Romans built the Trajectum Castellum (fortress).
- Willibrord redesigned the old castellum as a mission and converted the Netherlands (from 695 AD)
- In the medieval hey-days, Utrecht is a religious and mercantile bastion and remains the largest and main city until the 16th century.
- Union of Utrecht, 1579; foundation for the Dutch Republic. Peace Treaty of Utrecht, 1713.