Answer: They made some modern day inventions, like locks and keys, paved roads, uses of iron, plumbing, flushing toilets, and some of the modern day clocks. Assyrians also brought about the use of the first guitar, first libraries, first magnifying glass, and the first postal system.
Answer:
C
Explanation:
The slave population increased rapidly as a result of the cotton gin.
Answer:
Many who settled in the New World came to escape religious persecution. New World grains such as corn kept the colonists from starving while, in Virginia, tobacco was found to be a valuable cash crop.
Hope this helps.
I know that for the very earliest daguerrotypes could had an exposure time of 5 minutes -- a very long time! But that time was reduced as the process improved. Depending on lighting and conditions, exposure times could be a short as several seconds.
By the way, those early photographic processes were called daguerrotypes after the inventor, <span>Louis-Jacques-Mandé Daguerre, who introduced his form of photography in 1839. By 1860, other types of processes had also been invented and became more common in usage.</span>
