well first i will tell you it is much easier to write in simple past for beginners in german not preterit. i know because ich wohne in deutschland. so try to us the GE form it works better for people learning german. unless your teacher wants preterit.
Answer:
Riverside location was also a favorable factor for the development, as it happened in the development of Duisburg on the confluence of Rhine and Ruhr.
Explanation:
