May 23

On May 23, 1829, Armenian inventor Cyrill Demian received a patent in Vienna for his new instrument, the accordion. Demian’s design featured bellows and keyboard buttons, creating chords with a single hand motion. The invention quickly gained popularity across Europe for its portability and rich sound. The accordion influenced folk and classical music traditions, leading to numerous variants. Today, it remains a beloved instrument in many cultures around the world.

Developed by James Gosling and his team at Sun Microsystems, Java was designed for portability and secure network computing. The inaugural Java Development Kit (JDK 1.0) included the HotJava browser, demonstrating applets running on any platform. Java introduced the principle "write once, run anywhere," allowing code to execute on any device with a Java Virtual Machine. Its robustness and object-oriented structure made it popular for web applications, enterprise systems, and mobile devices. Java quickly became one of the most widely used programming languages worldwide. Its release marked a significant milestone in software development, influencing future language designs.