Your memory for the moment you heard about the planes crashing into New York's Twin Towers would be most appropriately termed a(n) memory.

Flash bulb memory

Explanation:

The theory of Flashbulb memory was first proposed by Brown & Kulik (1977). They defined flashbulb memory as a highly detailed, exceptionally vivid "snapshot or photographs" of the moment when a surprising and emotionally arousing event happened.

Flash bulb

Explanation:

Flashbulb memories are one type of autobiographical memory. They are known for their elements of personal importance, consequentiality, emotion, and surprise.

Flashbulb memories have six characteristic features: place, ongoing activity, informant, own effect, other effect, and aftermath. Arguably, the principal determinants of a flashbulb memory are a high level of surprise, a high level of consequentiality, and perhaps emotional arousal.The planes crashing into New Yor'k Twin Towers is a flashbulb memory that has the element of surprise.

in 342 bc j._c. egypt fell into the hands of the persians, under the reign of nectanebo ii

greek city-states unite in a revolt against the persian empire at the beginning of the fifth century bc. j.-c  

from the year 660 or 659 bc ad, cyrus preached the revolt against the medes to deliver the persians.