What is Cardiff bay late 19th century early 20th century known as?

Cardiff Bay in the late 19th and early 20th centuries was known as a major industrial and shipping hub, primarily due to its role in coal exportation from the South Wales valleys. The construction of the Cardiff Docks, particularly the Bute East and West Docks, transformed it into one of the world's busiest ports at the time. This period saw significant economic growth and urban development in Cardiff, making it a focal point for trade and maritime activity in the region. The area also became a melting pot of cultures, attracting a diverse population due to the influx of workers and shipping activity.