Because of the long substitution of е for ё some words have changed their pronunciation or obtained an alternative one. See the paragraph right before this one (http://ru.wikipedia.org/wiki/%D0%81#.C2.AB.D0.81.C2.BB.2C_.C2.AB.D0.B9.D0.BE.C2.BB_.D0.B8_.C2.AB.D1.8C.D0.BE.C2.BB_.D0.B2_.D0.B7.D0.B0.D0.B8.D0.BC.D1.81.D1.82.D0.B2.D0.BE.D0.B2.D0.B0.D0.BD.D0.B8.D1.8F.D1.85_.D0.B8_.D0.BF.D0.B5.D1.80.D0.B5.D0.B4.D0.B0.D1.87.D0.B5_.D0.B8.D0.BD.D0.BE.D1.8F.D0.B7.D1.8B.D1.87.D0.BD.D1.8B.D1.85_.D1.81.D0.BE.D0.B1.D1.81.D1.82.D0.B2.D0.B5.D0.BD.D0.BD.D1.8B.D1.85_.D0.B8.D0.BC.D0.B5.D0.BD) starting with побасёнка and then read from this point (http://ru.wikipedia.org/wiki/%D0%81#.D0.9F.D0.BE.D1.81.D0.BB.D0.B5.D0.B4.D1.81.D1.82.D0.B2.D0.B8.D1.8F_.D0.BD.D0.B5.D0.BE.D0.B1.D1.8F.D0.B7.D0.B0.D1.82.D0.B5.D0.BB.D1.8C.D0.BD.D0.BE.D0.B3.D0.BE_.D1.83.D0.BF.D0.BE.D1.82.D1.80.D0.B5.D0.B1.D0.BB.D0.B5.D0.BD.D0.B8.D1.8F_.D0.B1.D1.83.D0.BA.D0.B2.D1.8B_.C2.AB.D1.91.C2.BB) on. The whole article is quite interesting.
no subject
See the paragraph right before this one (http://ru.wikipedia.org/wiki/%D0%81#.C2.AB.D0.81.C2.BB.2C_.C2.AB.D0.B9.D0.BE.C2.BB_.D0.B8_.C2.AB.D1.8C.D0.BE.C2.BB_.D0.B2_.D0.B7.D0.B0.D0.B8.D0.BC.D1.81.D1.82.D0.B2.D0.BE.D0.B2.D0.B0.D0.BD.D0.B8.D1.8F.D1.85_.D0.B8_.D0.BF.D0.B5.D1.80.D0.B5.D0.B4.D0.B0.D1.87.D0.B5_.D0.B8.D0.BD.D0.BE.D1.8F.D0.B7.D1.8B.D1.87.D0.BD.D1.8B.D1.85_.D1.81.D0.BE.D0.B1.D1.81.D1.82.D0.B2.D0.B5.D0.BD.D0.BD.D1.8B.D1.85_.D0.B8.D0.BC.D0.B5.D0.BD) starting with побасёнка and then read from this point (http://ru.wikipedia.org/wiki/%D0%81#.D0.9F.D0.BE.D1.81.D0.BB.D0.B5.D0.B4.D1.81.D1.82.D0.B2.D0.B8.D1.8F_.D0.BD.D0.B5.D0.BE.D0.B1.D1.8F.D0.B7.D0.B0.D1.82.D0.B5.D0.BB.D1.8C.D0.BD.D0.BE.D0.B3.D0.BE_.D1.83.D0.BF.D0.BE.D1.82.D1.80.D0.B5.D0.B1.D0.BB.D0.B5.D0.BD.D0.B8.D1.8F_.D0.B1.D1.83.D0.BA.D0.B2.D1.8B_.C2.AB.D1.91.C2.BB) on. The whole article is quite interesting.