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The Elves themselves are of three clans headed by Ingwe of vanyar, Finwe of Nolder and Elwe and Olwe of Sindar.Thus we enter into the second age with the elves living in Valinor, the blessed realm of valars. But Melkor gets released and by this time we have Feanor a master craftsman, son of Finwe, creating the three silmarils, the jewel blessed with the light of Trees created by Yavanna (Valar) which is abducted by Morgoth.From here on the story concentrates wholly on the line of Finwe's sons(Feanor,Fingolfin,Finarfin) and to some extent on the line of Elwe (Thingol). Most of the anecdotes in LOTR are described in detail, eg-Beren and Luthien's affair, Ring of Barahir(given to Barahir by Finrod Felagund), Castle of Thangorodrim.
After many deaths in Nolder's line in the hands of Morgoth's host, Earendil
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The Sons of Earendil are Elrond and Elros. Elrond chose to be an elf while Elros represented men. He was known as the Tar-minyatur
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Ouch! i forgot to tell the destiny of the silmarils. one of the silmarils would be recovered from Morgoth's crown by beren and luthien and put up in the sky, but the other two would be put up in fire and Water of Ea.