No four wet islands were found still sitting in a marsh.
Debated. Buried walls and waterways led one researcher to say the city grew on marsh islands, but that picture is not finished.
The city is Lagash, now called Tell al-Hiba, in southern Iraq between the Euphrates and the Tigris. It was likely begun between 4,900 and 4,600 years ago, and people left around 3,600 years ago. Its Early Dynastic years are about 2900 to 2350 BC. A drone showed buried buildings, walls, streets, and waterways. Emily Hammer says those city sectors began as islands in a marsh. Her study points to three islands where people lived and a fourth with a huge temple. Older work on the same site had said there might be 33 small marsh islands. Harbours may have joined the sectors by boat.
People still argue how many islands there were, and whether the streets were planned or grew in a jumble.
https://www.ancient-origins.net/news-history-archaeology/lagash-0017401