Difference between Materialize and Happen

MATERIALIZE vs HAPPEN: VERB

To come to pass.
To have the fortune (to be or do something); be in a situation or position (to be or do something).
Used with the impersonal subject it and a following clause or infinitive to indicate the occurrence of a usually unexpected or chance event.
To come or go casually; make an appearance.
To encounter something by chance.
Used with an infinitive to make polite requests.
To take place; to occur.
To meet with; to fall or light upon.
To be the fate; become.
To come about as a consequence; result.
To make a casual call.
To come by chance; to come without previous expectation; to fall out.

To make visable in, or as in, a material form; -- said of spirits.
To cause to assume a character appropriate to material things; to occupy with material interests.
To regard as matter; to consider or explain by the laws or principles which are appropriate to matter.
To invest with material characteristics; to make perceptible to the senses; hence, to present to the mind through the medium of material objects.

Become reality
Come into being
Also spelled materialise.
To take form or shape; come into perceptible existence; become real: as, the project has not yet materialized.
To become material; assume a material form; in recent spiritualistic use, to assume, as a spirit or immaterial entity, a form which is perceptible by the senses, or one that is visible, tangible, and (in the case of supposed spirits) capable of physical exertion.
To give the character of metaphysical materialism to; render materialistic.
To give a material form or bodily existence to; make physically perceptible; embody in any manner. See II.
To reduce to a material basis or standard; treat as pertaining only to matter; give a material character to; make material, low, coarse, sensual, etc.: as, to materialize thought, morality, or mythology; to materialize one's ideas or enjoyments.

Possibly; perhaps.
To occur by chance; occur unexpectedly or unaccountably; in general, to occur; take place.
To chance; be by chance or unexpectedly: as, he happened to be at home.
Fortunate; happy; blessed.
(Santayana)
Come into being
Become reality
Come upon, as if by accident
Meet with

Implement, Accrue, Actualize, Unfold, Concretize, Attain, Achieve, Come, Realize, Arise, Emerge, Fulfill, Crystallize, Occur, Happen

Come about, Pass off, Bechance, Go on, Take place, Hap, Encounter, Chance, Pass, Bump, Hit, Find, Befall, Materialize, Occur

Accomplish, Concretise, Appear, Implement, Accrue, Actualize, Unfold, Attain, Achieve, Come, Arise, Emerge, Crystallize, Occur, Happen

Recur, Unfold, Come, Come about, Go on, Take place, Hap, Encounter, Chance, Pass, Bump, Hit, Find, Materialize, Occur

Tantalizers promise a reward, which will never materialize.
Unfortunately, those plans did not materialize when Mr.
Even he knew that they would never materialize.
Should the elusive traitors suddenly materialize, not consumption.
Can Demons Materialize in Human or Animal Form?
The ambitious Fly Gibraltar project failed to materialize.
PiS argues this vision has failed to materialize.
No one knows whether these problems will materialize.
The synergies and anticipated benefits to us of any strategic transaction, acquisition or merger may materialize more slowly than anticipated or may never materialize.
Materialize CSS for styling my app, how to modify Rails_admin view using Materialize CSS?

It basically describes all the horrible things that happen in hell and all the awesome things that happen in heaven.
Make sure it is clear what will happen when the rules are followed and what will happen when they are not.
And if it can happen to Jennifer Love Hewitt, it can happen to you.
Richard Stamp of London had one of the worst things that can happen to a man happen to him, he lost his fucking penis.
Although this used to happen regularly under the Supporting People programme, it does not happen regularly now.
And that again will not happen immediately, but could happen over the next year or so if his conviction is upheld.
That way at least you know what will happen should something similar happen in the future.
Meaning: If you want something to happen, make it happen.
Some want it to happen, some wish it would happen, other make it happen.
Yet assumptions have a major impact on what individuals expect will happen, can happen, or should happen.