The city was established in 997 by Olav Tryggvason and it was originally named Nidaros (Old Norse: Niðaróss). The first element of the name was the local river Nid. The last element of the name was óss which meant "the … See more

Trondheim was named Kaupangen (English: market place or trading place) by Viking King Olav Tryggvason in 997 CE. Shortly after that, it came to be called Nidaros. Initially, it was frequently used as a military re… See more

Trondheim is situated where the River Nidelva meets Trondheim Fjord with an excellent harbour and sheltered condition. In the Middle Ages the river was deep enough to be navigable by most boats. However, i… See more