Answer:
I believe it's two, gunpowder and crossbow
Explanation:
The soonest realized crossbows were designed in the main thousand years BC, not later than the seventh century BC in old China, not later than the fourth century BC in Greece (as the gastraphetes).
Gunpowder was developed in China at some point during the main thousand years AD. The most punctual conceivable reference to gunpowder showed up in 142 AD during the Eastern Han administration when the chemist Wei Boyang, otherwise called the "father of speculative chemistry", expounded on a substance with black powder like properties.
Answer:
The answer is "brief stimulus assessment".
Explanation:
It is an insight into the perceptions of a person that triggers a response or even a reaction, which is used in conventional training, as well as, another behavior testing. Or it is a set of several methods used to assess whether or not one or even more stimuli can act to accelerate the amount from a certain behavior or activity afterward.
The Monroe Doctrine is the best known U.S. policy toward the Western Hemisphere. Buried in a routine annual message delivered to Congress by President James Monroe in December 1823, the doctrine warns European nations that the United States would not tolerate further colonization or puppet monarchs.
Charlestown
About 10 p.m. had himself rowed across the Charles River, directly under the guns of an English ship. On the other side, associates tipped off by the lanterns provided him with a swift horse named Brown Beauty, and he set off for Lexington.
