By 2828 Mumbai was the most densely populated city in the world with a population of 90 million people making it the most densely populated city in human history. The city had long since introduced a mass transportation system biofuel and the most sustainable food system in all of Asia. All the food in Mumbai was hydroponically grown in large vertical farms built on the remnants of 21st-century slums. Lab-grown meats also provided food for the entire population. The city had long since modernized and no longer had outbreaks of cholera or dysentery. However, the city was running out of room to house all of its inhabitants by the 29th century. In the 22nd century of new Mumbai was built to house residents of the city. However, by the 29th century, new Mumbai had a population of 29 million. As a result beginning on May 1, 2828, a large artificial island chain known as the Mumbai Archipelago began to be built. It has the goal of providing housing for 18 million people and providing food for all the residents at a fairly low price. A large university would also be built as well as the largest port in Asia. This island chain was not completed until 2863 when was completed it was considered the most popular place to live in the entire Asian continent. This archipelago continues to be an extremely popular destination for tourists well into the 55th century when the islands were finally destroyed by natural climate change and the new Ice Age.