Here is here origin story taken directly from DC Comics website.

Part 1

Part 2

Problem with canon in DC in general is they have a tendency to reboot their universe every so often and modify origins and such.

Currently, Wonder Woman is Diana, Amazon Princess of Themyscira. Her mother, Hippolyta...who had long wanted a daughter...received a message from the Greek gods to form a child out of clay. The gods then brought it to life and that's how Diana was born. She was given powers by the gods because they knew she was one-day destined to oppose Ares who they feared could one day destroy the world.

Diana grew up on Themyscira, training as an Amazon and learning their philosophy of peace and tolerance. Eventually, the day came when one of the Amazon oracles foresaw that Ares was trying to start a World War 3 that would destroy Earth. So the Amazons held a contest to deside who would be their Champion to leave Themyscira and go into the "Patriarch's World" to stop him. Hippolyta, who's very protective of Diana, forbade her from entering the contest, but Diana did so anyway against her mother's wishes and won.

She left Themyscira where she did stop Ares from causing World War 3, and decided to remain their to fight evil and spread the Amazon message of peace and tolerance. The name "Wonder Woman" was given to her by some news reporters, BTW.

Currently, Wonder Woman is one of the most powerful heroes in the DC universe. She is described as second only to Superman in terms of strength. She is one of DC's best fighters and is generally regarded as their greatest warrior.

To answer you question about Steve Trevor, in the current continuity, they are not in love. Point in fact, he rarely ever appears anymore and when he does, he acts as sort of an older brother for Diana.

Diana has a rather complex personality, which many writers have difficulty understanding...which does lead to confusion and inconsistency about who she is.
She is generally a reserved and disciplined character...but also very warm and compassionate. She's idealistic, but not naive. In battle, she is very fierce and forceful...which at times puts off her allies. She knows her mission to bring world peace is pretty much an impossible one, but she tries to anyway...sometimes too hard, making her appear zealous or pompous. She tries to work on that.


Personally, I like Wonder Woman because of her complexities. I think she's a likable character (when she's written properly). I find it admirable that she tries to do more with her powers and status than merely fly around beating up bad guys and actually tries to make the world a better place....even though she gets a lot of shit for it. I also enjoy that she's a powerhouse character who also relies on her skill and training.

So with DC the "canon" story is the last one? Talk about retcons...
How far is she now from the character Marston created?

Marston had the gods less involved. They brought her to life, and I think she occasionally encountered Ares, but I think that was about it. Wonder Woman's powers came from Amazon training and concentration and she couldn't fly on her own...hence the Invisible Plane. Steve Trevor was WW's love interest and he was a big reason why she left Themyscira. Also, with Marston the Amazons were a very advanced technological society...which is where the Plane came from.

Retcons are a big issue with comics in general, not just DC. Thats what happens when characters have been around for well over half a century, they have to be updated and modernized.

Ok, but also Tex Willer has been around since 1948, and never got huge retcons, as far as I know. If you give a character a love interest for years, it becomes an element of the character's identity; if you just erase this from continuity, it looks like it's not the same character anymore. Probably it takes some patience to follow this... Damn, after all I never asked for DC in MK.

See thats the thing about most American comic book characters, NONE of them are exact same character they were 50 years ago, Batman for example: When Bob Kane AND Bill Finger created him, he was nothing more than dime store version of The Shadow (in fact, Bill Finger even admitted that the first Batman stories he ever wrote were ripoffs of Walter Gibson's Shadow stories) that KILLED people and carried a gun.. Flash forward 50 year+ years and you have a Batman that doesn't kill and strongly opposes firearms.