Here are some possible sentences using the numbers provided:
* 80: You can buy Monopoly™ in 80 different countries.
* 1944: World War II was ongoing in 1944.
* 1949: The People's Republic of China was founded in 1949.
* 1933: Adolf Hitler became Chancellor of Germany in 1933.
* 1934: The Night of the Long Knives took place in 1934.
* 5,000: The ancient city could house 5,000 people.
* 200 million: The new movie grossed 200 million dollars.