Why did political parties switch to national conventions to nominate presidential candidates?

Which product would have been most likely to have been traded in this area at this time?

The most influential immigrant group in texas came from

Characteristics of what type of economic system are being described below? 1.economy in which some/all of the basic economic questions answered by central authority 2.trade generally limited to what is produced through the influence of the government a.command economies. b.market economies. c.traditional economies.