If you mean the metal armoured modern battleships, they have been around since about 1900
It took about 2 minutes for each of Admiral Togo's battleships to turn around (to maintain their capping of the "T" formation over the advancing Russian battleships).
Japan had 8 battleships built as such and also 4 fast battleships which had been built as battlecruisers but improved between the wars.
how long has deforestation been around
As long as guns have been around.
About a year.
The release date has not been disclosed yet.
As long as So Random has been around.
how long has the london eye been around for
All battleships are strong...otherwise they would not be battleships.
234 years fool
how long have boxing been around?
boner