The Land Act of 1820 established the ban on purchasing any of the United States' public domains in an installment or credit form of payment over four years. It actually just lowered the prices per acre but ended the credit or installment purchases.
The revolutions of 1848 (Known as
Spring of Nations, People's Spring or Springtime of the Peoples in some
countries) were triggered by street protests beginning in Silicy (in January
1948), an autonomous region of Italy. The wave of revolution that swept through
Europe in 1948 is still the most pervasive revolutionary wave in the history of
Europe.
The correct answer would the The Supreme Court.
Henry the Navigator
Henrique o Navegador