Nikola Tesla's life was marked by several defining moments that shaped his legacy. His early fascination with electricity and the development of the alternating current system set the stage for his future innovations. A pivotal moment was his rivalry with Thomas Edison, known as the War of Currents, which highlighted his commitment to advancing electrical technologies. Furthermore, Tesla's later struggles with finances and recognition reflect his vision's challenges and societal inadequacies. The combination of his innovative spirit and personal struggles underscored his profound impact on electrical engineering and technology, securing his place in history.