write me a research paper about the history of japanese martial arts. make sure to use a good writing format and make sure to include evidence along with statements and at the end sight your sources

Title: The Evolution of Japanese Martial Arts: A Historical Perspective

Introduction:
Japanese martial arts have a rich and diverse history that spans centuries. The development of these ancient combat techniques can be traced back to prehistoric times and have been shaped by various cultural and social influences. This research paper aims to explore the history of Japanese martial arts, from their humble beginnings to their modern manifestations.

Origins and Early Development:
The origins of Japanese martial arts can be traced back to the early feudal period in Japan, where warfare was a constant reality. During this time, the samurai emerged as a dominant warrior class, and various martial arts disciplines were developed to train these elite soldiers in the art of combat. One of the earliest forms of martial arts in Japan was known as "bujutsu," which encompassed a wide range of combat techniques, including swordsmanship, archery, and hand-to-hand combat.

Expansion and Influence:
As Japan entered a period of relative peace during the Edo period (1603-1868), the focus of martial arts shifted from practical combat to personal development and spiritual growth. This period saw the emergence of various martial arts schools, or "ryuha," each with its own unique set of techniques and philosophies. Some of the most well-known traditional Japanese martial arts, such as judo, karate, and kendo, trace their origins back to this time.

Modernization and Globalization:
In the late 19th and early 20th centuries, Japan underwent a period of rapid modernization and industrialization, which had a profound impact on the practice of martial arts. During this time, many traditional martial arts were systematized and codified into modern sports, making them more accessible to a wider audience. Judo, for example, was developed by Jigoro Kano as a way to promote physical fitness and mental discipline, and has since become an Olympic sport with global appeal.

Conclusion:
The history of Japanese martial arts is a testament to the rich cultural heritage and warrior ethos of Japan. From their origins on the battlefield to their modern-day practice as a form of physical and mental discipline, Japanese martial arts have evolved and adapted to the changing times. By studying the history of these ancient combat techniques, we gain a deeper understanding of Japanese culture and the values that have shaped its martial traditions.

Sources:
- Draeger, Donn F. (1974). Classical Budo: The Martial Arts and Ways of Japan. Weatherhill.
- Friday, Karl F. (1994). Legacies of the Sword: The Kashima-Shinryu and Samurai Martial Culture. University of Hawaii Press.
- Skoss, Meik (1999). Sword and Spirit: Classical Warrior Traditions of Japan. Koryu Books.