Final answer:
The United States experienced a financial collapse in 1929 that led to the Great Depression.
Step-by-step explanation:
The country that experienced a financial collapse in 1929 that ultimately led to the Great Depression was the United States. The Depression started with a massive stock market crash in October 1929, which triggered a chain of events that devastated the nation's economy and sent shockwaves across the globe. Banks demanded repayment of loans, businesses shut down, governments defaulted on loans, and unemployment soared. The Great Depression lasted from 1929 to 1939, causing immense suffering and hardship.