Here's a first take at proofreading, and some commentary. I hope this is readable enough to be useful. It is possible I am mistaken on a few points, of course.
1.1 "a mapboard of the Mediterranean and Near East" probably needs updating.
3.1 How about "B. Eighteen sets of playing pieces and one additional set for pirates and barbarians".
10.11 Is this still supposed to be in the rulebook? "In the last epoch, each space contains a point value. Such spaces may not be entered unless the player in question has acquired the indicated number of points (33.25)."
Orig-14.2 This text was in the original. "Players must keep a running total of their civilization card values and reveal this when asked by another player." I think keeping that someplace would be a good idea.
14.62 ... "When a city belonging to the inert nation is eliminated, the attacking player does not get anything." They should still be able to pillage, right?
How about this instead: "When a city belonging to the inert nation is eliminated, the attacking player is unable to steal a commodity card, as the inert nation has none."
21.2 The word "coastal" (both times) needs to be highlighted in red as it's a change: "A ship financed completely from treasury may be placed in any coastal area containing at least one of the player's units. A ship built totally or partially by levy must be placed in the coastal area ..."
22.59 This rule is mostly changed text and should be highlighted. However, Delphi is not the only terrority with dual coastlines: Scythia still has two distinct coasts and in the original western expansion Aquitania (but the ACEP map has broken that terrority up.) I've looked and not been able to find any others so far.
How about this instead? "22.59 Some terrorites (such as Dephli) have two distinct coastlines. Ships may enter a terrority from either side, but must leave from that same side. Ships may not cross directly from one coastline to another."
23.53 Add: "Diplomacy provides an exception to this."
26.5 The original rule mentions Slave Revolt as an exception. The ACEP rulebook drops out the exception. I'm thinking putting back the exception would be clearer (as the style of rulewriting here puts each and every exception into the rules.)
Change to: "City support is not checked at any other time, other than when resolving Slave Revolt (30.42)."
27.51 - there is a 27.51 which comes after 27.5 and there is a 27.51 which comes after 27.6 (twenty-seven.SIX), with different wording.
I think that 27.5, 27.52 and the first 27.51 were inteded to be dropped.
27.6 *** Can you purchase a draw from the stack, if the stack is empty? I think it is a good idea to explictly state it. I'm more for "no", but I've seen "yes" used in play.
27.6 Is the intent to allow the possibility to purchase a total of four additional trade cards if the player has the necessary advances and treasury? (Admittedly never happen as treasuries don't get that large, but I'm looking theoritically.) The wording on Cartography might be interpeted as a replacement to the "buy gold".
27.62 There's two items numbered 27.62 (one before and one after the second 27.51)
27.62 "... master ... " > "... manner ..."
30.412 Whether or not the commodity cards lost are random or chosen should be specified. (Calamity cards are, by definition not commodity cards, but they are trade cards.)
30.416 "costal" > "coastal". Maybe *only* coastal areas instead of prefrentially coastal areas?
30.422 While it is this way in the original rules, the second sentence would make more sense if it was moved to 30.421
30.423 "and additional" > "an additional"
30.5211 The next to last sentence with the phrase "any area" could be interpeted to allow barbarian placement outside of a map border area, or bordering a zero pop area (as long as there was *something* next to a border somewhere.)
30.63 Change "Coastal Migration" > "Coastal Migration (minor)"
30.71 Is it supposed to be precisely 10 point, no more and no less, or would 11 points satisfy the calamity?
30.811 How about "enemy civilization" > "other civilization... to be a beneficiary", etc.
30.412 Whether or not the commodity cards lost are random or chosen should be specified. (Calamity cards are, by definition not commodity cards, but they are trade cards.)
30.913 add ", unless the victim also has Fundamentalism." There's probably a better way to word it.
31.62 Monotheism now requires Deism. And Fundamentalism requires Mythology.
32.0271 Needs to be highlighed in red.
32.0282 I'd suggest switching "trade card" for "commodity card", otherwise someone might try exchanging calamity cards. 7.1 specifically states that "trade cards" includes calamities.
32.065 "... (32.62) ..." > " ... (32.062) ..."
32.086 There's no mention that Diplomacy has a prereq of Law (which is mentioned under Law and 31.62)
32.086 You've added a new term "sack". Previously in 23.5, the terms were "Drawing-a-trade-card" and "Pillage". However, "sack" is defined in-place well enough to use.
32.0862 There's two 32.0862
32.1141 "A player who holds Military is immune to the effects of Diplomacy." Does that includes sacking during Special Effects?
32.1152 "Naval Warfare makes ships now cost three extra unit points to build and ..." This extra cost is not mentioned under the ship construction section (21.).
33.25 Should that be "greater than 200" or "at least 200". While there are no cards at 100 points, there is at least one at 200. Should Democracy NOT count? (Diplomacy and Cartography are 200 point cards as well as well.)
35.2 As almost a joke, I'll suggest pointing it at AST order instead of leaving it at a tie

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I have never seen a game come down to a tie (but I have seen at least one come down to less than 10 points.)