When did God make himself known as Jehovah/Yahweh?

Exodus 6:2-3

God also said to Moses, "I am the LORD. I appeared to Abraham, to Isaac and to Jacob as God Almighty, but by my name the LORD I did not make myself known to them.

Genesis 22:14

So Abraham called that place The LORD Will Provide. And to this day it is said, "On the mountain of the LORD it will be provided."

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