Was the date for the 9/11 attack chosen to be the same as the emergency number in the U.S. (911)?

Question

Many sites on the internet cite this coincidence as ether a prof to a conspiracy by the gov. or a message that the terrorists wanted to pass to the American People. Here are just some exmples from around the net:

Yahoo Questions:

Q: I just got wondering, is it a coincidence that the terrorist attacks on the WTC towers was on 9/11? The emergency number to dial in the US is 911 after all. I always thought the number was chosen after the attacks, but I just read it has existed for a few decades already.

So, did the terrorists pick 9/11 on purpose because 911 is the US emergency phone number, or is this just a coincidence?

The accepted answer:

Haven't you heard about the " the artificial accident of Pentagon " ???

more often than not that it was a " fabricated " accident rather than a pure coincidence or even a proceed of a smart planning of so called " the terrorist and Bin Laden" ....they probably have cooperated with each other( US government with bin laden ) to make that tragedy ....Bin Laden has never presented Islam in any way ...

actually you should rephrase that Q to this way: have ""US government" chosen that day deliberately?

just google it and you will find thousand sites talking about this ...

And some of the other answers:

A1: I always thought that. Their idea of a joke or something.

A2: I don't believe in "coincidences."

ask.com question:

Does the emergency number 911 have anything to do with the 9-11 terrorist attacks?

And one of the answers said:

The emergency phone number 911 has been around for a very long time. I'm fairly sure the attacks occurred on 9/11 just to add insult to injury.

From www.abovetopsecret.com:

I was wondering of the coincidence or not of September 11 as called 9/11 & the emegency phone number for America being 911.

1. Was this just a coincidence?

2. Was this day chosen to teach America the fear of a real emergency from the "alledged" terrorist point of view?

3. Was this day chosen by the "alledged" TPTB to instill a date that could be easily remembered due to it being so close to an already well known number 911 phone number?

4. Was this day chosen to be an ironical slap in the face of the general populace?

Just always seemed to much of a coincidence of 9/11 & 911 being chosen.

I say this because many other countries use different dating systems for example 9/11/2001 is dated 11/9/2001.

Also the 911 emergency phone number is differnet for other countries where numbers like 000 or 999 are used instead.

Anyone ever thought this as too much of an ironical coincidence?

Many of the answers in that thread also think the same:

A1: The date was absolutely chosen on purpose. Regardless of who you think did the deed, there was months if not years of planning that went into the 911attack. With all that must have gone into putting all that together, the numeric symbol is to apparent and powerful to be by chance.

A2: Options 2,3 and 4 seem more likely than 1. But the number may be significant for other reasons. Numerology is extremely important to the Illuminati according to most of the people who study them. (How does one study a secret organization? Is it even organized enough to study?) Many of the sites google listed seem kooky, but something might make sense.

Answer 1

No it wasn't, While the terrorists used the Gregorian calender to communicate the date of the attack, they used it in its form known throughout the rest of the world: dd/mm/yyyy and not the American form mm/dd/yyyy. So that it forms the 11/9 and not 9/11. Here is how Mohamed Atta transmitted the date of the attack to the operatives (source):

As the Saudis were arriving in the U.S. in July, Atta was taking off, flying into Madrid and driving 500 miles to a Spanish coastal resort for a working vacation. Joining him was Ramzi Binalshibh with a message from Khalid Shaikh Mohammed. The final date for the operation was in Atta's hands. Atta had Shaikh Mohammed's complete trust.

Then, on Aug. 29, the phone rang in Binalshibh's Hamburg apartment at three in the morning.

It was Atta with an important, but cryptic message: "He said to me, 'One of my friends related a riddle to me and I cannot solve it, and I called you so that you can solve it for me.'" Binalshibh is heard saying.

Atta goes, "Two sticks, a dash and a cake with a stick down."

Binalshibh said, "I said to him, 'Is this the riddle? You wake me from a deep sleep to tell me this riddle? Two sticks and I do not know what?'"

Eventually, Yosri Fouda says, Binalshibh realized what Atta meant. So he says to him, "OK. Tell your friend, he has nothing to worry about. It's such a sweet riddle."

Binalshibh explained it: "The two sticks represent the number 11, then the dash, and then the cake from which a stick dangles represents number nine. Thus, the picture becomes complete: the 11th of September."

Binalshibh left Hamburg on Wednesday, Sept. 5, for Pakistan. From there, he sent a messenger into Afghanistan with news for Khalid Shaikh Mohammed and Osama bin Laden: Tuesday, Sept. 11, would be the day.

Answer 2

From Lawrence Wright’s 2006 Pulitzer Prize-winning book “The Looming Tower”:

To them, the Crusades were a continual historical process that would never be resolved until the final victory of Islam. They bitterly perceived the contradiction embodied by Islam's long, steady retreat from the gates of Vienna, where on September 11 — that now resonant date — in 1683, the king of Poland began the battle that turned back the farthest advance of Muslim armies. For the next three hundred years, Islam would be overshadowed by the growth of Western Christian societies. Yet bin Laden and his Arab Afghans believed that, in Afghanistan, they had turned the tide and that Islam was again on the march.

Christoppher Hitchens had the same idea:

I now think I can provide a more persuasive explanation, however. It was on September 11 1683 that the conquering armies of Islam were met, held, and thrown back at the gates of Vienna.

[...]

In our culture, the episode is often forgotten or downplayed, except by Catholic propagandists like Hilaire Belloc and GK Chesterton. But in the Islamic world, and especially among the extremists, it is remembered as a humiliation in itself and a prelude to later ones.