Chronological Order of Koranic Chapters.

The Egyptian standard edition ( prepared by Al-Azhar University, The most important and authoritative  institution in Sunni Islam) gives the following chronological order of the Suras (Chapters), with the verses said to date from a different period given in parentheses:

XCVI, LXVIII (17-33, 48-50 Med.), LXXIII (10 f., 20 Med.), LXXIV, I, CXI, LXXXI, LXXXVII, XCII, LXXXIX, XCIII, XCIV, CIII, C, CVIII, CII, CVII, CIX, CV, CXIII, CXIV, CXII, LIII, LXXX, XCVII, XCI, LXXXV, CVI, CI, LXXV, CIV, LXXVII (48 Med.), L (38 Med.), XC, LXXXVI, LIV (54-6 Med.), XXXVIII, VII (163-70 Med.), LXXII, XXXVI (45 Med.), XXV (68-70 Med.), XXXV, XIX (58, 71 Med.), XX (130 f. Med.), LVI (71 f. Med.), XXVI (197, 224-7 Med.),XXVII, XXVIII (52-5 Med., 85 during Hijrah), XVII (26, 32 f., 57, 73-80 Med.), X (40, 94-6 Med.), XI (12, 17, 114 Med.), XII (1-3, 7 Med.), XV, VI (20, 23, 91, 114, 141, 151-3 Med.), XXXVII, XXXI (27-9 Med.), XXXIV (6 Med.), XXXIX (52-4 Med.), XL (56 f. Med.), XLI, XLII (23-5, 27 Med.), XLIII (54 Med.), XLIV, XLV (14 Med.), XLVI (10, 15, 35 Med.), LI, LXXXVIII, XVIII (28, 83-101 Med.), XVI (126-8 Med.), LXXI, XIV (28 f. Med.), XXI, XXIII, XXXII (16-20 Med.), LII, LXVII, LXX, LXXVIII, LXXIX, LXXXII, LXXXIV, XXX (17 Med.), XXIX (1-11 Med.), LXXXIII   Hijrah(Prophet's Migration to Medina)   II (281 later), VIII (30-6 Mec.), III, XXXIII, LX, IV, XCIX, LVII, XLVII (13 during Hijrah), XIII, LV, LXXVI, LXV, XCVIII, LIX, XXIV, XXII, LXIII, LVIII, XLIX, LXVI, LXIV, LXI, LXII, XLVIII, V, IX (128 f. Mec.), CX.


P.S. Roman  Symbols: X - 10, L - 50, C - 100.
Some ex.  XL = 40; XLII = 42; XLIX = 49; 80 = LXXX; 90 = XC.