I want to know the answer to the following question:
How many smaller cities did Mexico City make up at its height?
All the background I'm provided with is that "In 1854 president Antonio López de Santa Anna enlarged the area of the Federal District almost eightfold from the original 220 to 1,700 km2 (80 to 660 sq mi), annexing the rural and mountainous areas to secure the strategic mountain passes to the south and southwest to protect the city in event of a foreign invasion.". Is that enough to answer the question?
Answer: no