Question

1.
Why did
What happened before Robin was allowed to
enter the fortress?
​

Answer 1

Explanation:

The Fortress of Solitude did not arrive on Earth, originally. Superman built it himself and it was known as his Secret Citadel.

The Fortress of Solitude was a retreat for Superman, where he could be himself, and safely repose, and it was solely of his own design. That would change after Crisis on Infinite Earths.

Hope it helps..

Answer 2

Answer:

The Fortress of Solitude is a fictional fortress appearing in American comic books published by DC Comics, commonly in association with Superman. A place of solace and occasional headquarters for Superman, the fortress is typically depicted as being in frozen tundra, away from civilization.[1] Its predecessor, Superman's "Secret Citadel....

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