When was the CV-4 USS Ranger commissioned?

The USS Ranger (CV-4) was commissioned on June 4, 1934. The significance of this date is pivotal in understanding the evolution of naval aviation during this period. The USS Ranger was the first aircraft carrier built from the keel up for that purpose and reflected advancements in naval warfare techniques of the time.

By recognizing the date of its commissioning, it also places the USS Ranger within the historical context of the U.S. Navy's transition towards increased reliance on air power at sea, which became critical during World War II. The ship served throughout the war and was a testament to the expanding capabilities of the fleet.

The other years mentioned do not correspond to the commissioning of the USS Ranger, which helps underscore the importance of accurate historical records in military studies and naval history.