Why was the battle between the Monitor and the Merrimack considered a boring "tie"?

The battle between the Monitor and the Merrimack was considered a boring 'tie' because both the ironclads were fighting without injuring any harm on the other.

Explanation:

The Battle between the Monitor and the Merrimack, also known with various names such as the Battle of Hampton Roads or the Battle of the Ironclads, was fought between the Unions and the Confederates during  the American Civil War.

The War was fought from March 8, 1862 to March 9, 1862. The battle between the Monitor and the Merrimack was considered because both were fighting without causing any injury to the other.

On March 8, 1862, Merrimack fired cannonballs on USS Cumberland ship (Union's ship) and it sunk as it was made of wood. Next day, Unions came prepared with their ironclad, Monitor. Both the ships kept firing cannonballs at each other without injuring the other.

This became boring for both the army, thus, both returned back rendering the battle inconclusive.

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