Dates: First recorded in the years after the Dagor Bragollach of I 4551
Race: Men
Division: Men of Darkness
Cultures: Numerous
Other names: Men of Darkness, Swarthy Men
A general name for the races of Men from the unknown East of Middle-earth, who were a constant foe of the Free Peoples, from the treachery of Ulfang in the Nirnaeth Arnoediad of the First Age to their frequent attacks against Gondor in the Third Age
Ok something else about the Easterlings - the Easterlings from the First Age and those that appear during the Third Age (Balchoth, Wainriders and the Easterlings of Sauron in the War of the Ring) are most probably NOT the same.
While a part of the early Easterlings (B贸rs group) supported the Eldar, the others (Ulfangs people) betrayed the Elves, but before the Eldar also had trusted them.
The other Easterlings in the Third Age are "completely" evil and also came from an other region than those of the first age who had travelled through Beleriand and also lived there.
Who and how many? That's difficult to say as Tolkien doesnt give many names, but at least he states that C铆rdan and Celeborn were the last ancient elves that remained in Rivendell and had also lived during the First Age.
At the beginning of the Fourth Age, Elrond and Galadriel leave Middle-earth with most of their relatives and friends; afterwards, most Elves lived in "Eastern L贸rien" which includes parts of Mirkwood. Some also moved to Ithilien together with Legolas, who left Middle-earth together with Gimli.
Well now why would you say that the easterlings were completely evil? they were under the dominion of sauron, but remember what faramir/sam said about the southerner in ithilien. i would assume that the easterlings would be in the same spot, not truly evil but lied to and forced to go to war for sauron. ussually when i assume things i am way off but i'll say it all the same, lol.