Select the four enemies that the ancient romans did battle against
a. samnites
b. etrusians
c. celts
d. etruscans
e. carthaginians
f. flavians

The correct answers are:

a. Samnites;

c. Celts;

d. Etruscans;

e. Carthaginians;

The Romans fought with lots of different people through the Empire's existence over a large are. As Rome was starting to gain power, it started wars with the neighbors first, so the Etruscans on the north of them and the Smanites on the Apennine Mountains were the first to face them and fall down. After that the expansion continued and the multiple Celtic tribes were the ones that fall under the Roman sword, first the ones in Northern Italy, and after that the ones in the central and western part of Europe, as well as in Britain and Spain. And in meantime the Romans, with the three Punic wars, managed to put an end to the Phoenicians, by destroying Carthage and the Carthaginians in North Africa.  

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation: