Judges 2: After that generation died, another generation grew up who did not acknowledge the or remember the mighty things he had done for Israel.
I think it's safe to say that it's not so much that the Israelites didn't remember what God had done for Israel - after all, I'm sure the stories were passed down, there were too many miracles that took place for people to be unaware of what had gone on. But they didn't acknowledge His Lordship over their lives and remembering the past was irrelevant to have they lived.
It reminds me of the phrase "Those that don't learn from history are doomed to repeat it".
It's not enough to just know about God and about the things He has done. After all, the demons not only know about God they know He is God - but they obviously do not love, worship or serve Him.
Knowledge needs to become faith!
Tomorrow's Bible In a Year Passage: Judges 4:1-5:31, Luke 22:35-53, Psalm 94:1-23, Proverbs 14:3-4