what technological advancements directly led to the discoveries of the outer planets Uranus and Neptune?

In a citizens elect the president as head of government separate loy from the legislature

Why do all market economies have taxes to support armed forces police forces public schools and at least some form of public transportation?

In the case of furman v. georgia (1972), the united states supreme court ruled that the death penalty- in specific cases- being arbitrarily and inconsistently imposed, often in a discriminatory manner. as a result, the imposition of the death penalty as a punishment was stopped throughout the united states.