Were the things that Helen Keller accomplished, with help, anything short of miraculous?

When you really, really think about it, it’s quite mind boggling. Here is the link to Helen Keller

Something I think is important was that she was 19 months old when she became sick with the illness that took her sight and hearing (and sense of smell, too, I think.) It’s a reasonable assumption that she had knowledge of speech, and some residual memory of it. Some memory of associating things with names.

If she had been born blind and deaf, do you think Anne Sullivan could have ever gotten through to her?