Reach 10,000 population.
Reach 50,000 population.
Reach 100,000 population.
Reach 200,000 population.
Save up over $100,000.
Build a Stadium.
Have both a police and fire department built (checks at the end of the year)
Reach 10,000 population on the river map type.
Reach 10,000 population on the lake map type.
Reach 10,000 population on the island map type.
Reach 200,000 population before the end of 1905.