Historically, double-bladed swords, also known as two-handed swords or double-edged swords, did exist, but they were relatively rare compared to single-bladed swords. The design and usage of double-bladed swords varied across cultures and time periods.

One example of a historical double-bladed sword is the European Zweihänder, which emerged during the late medieval and Renaissance periods. The Zweihänder was a large, two-handed sword characterized by its long, double-edged blade and extended grip. It was primarily used by specialized infantry units and known for its effectiveness in formation-based combat.

In China, the double-edged Jian sword could be considered a type of double-bladed sword. The Jian featured a straight, double-edged blade and a long grip suitable for two hands. However, the Jian was typically a one-handed weapon, and its focus was on speed, precision, and agility rather than the brute force associated with larger double-bladed swords.

It's important to note that while double-bladed swords existed historically, they were not as prevalent or widespread as single-bladed swords. Single-bladed swords offered a more versatile and practical design for various combat situations. The use of double-bladed swords was often specific to certain cultures, time periods, or specialized military units.

In contemporary times, double-bladed swords are often associated with fictional depictions in literature, movies, and video games. The concept of double-bladed swords has been popularized through fantasy and media, featuring prominently in various fictional settings, but they are not commonly seen as functional weapons in real-world combat.