Hydrogen has become a crucial element in the search for clean energy solutions. It provides promise as a versatile and sustainable energy carrier. This chapter discusses the history of hydrogen technologies, tracing its journey from early industrial uses to its current pivotal role in modern energy systems. It explores the versatility and energy storage capabilities of hydrogen, emphasizing its potential for decarbonization in various sectors such as transport, industry, and electricity generation. The chapter aims to provide a comprehensive overview of recent advancements in hydrogen technologies, examining innovative production methods and groundbreaking applications. Through this exploration, it seeks to clarify the role of hydrogen in shaping global energy landscapes and contributing to sustainable practices. By assessing its impact across different sectors, the chapter highlights the significance of hydrogen in promoting a transition toward cleaner and more resilient energy systems that align with environmental goals and the pursuit of carbon neutrality.