What is the first piece of International Space Station launched by?

The first piece of the International Space Station (ISS) launched was the Zarya module, also known as the Functional Cargo Block (FGB). It was launched by Russia on November 20, 1998, aboard a Proton rocket. Zarya served as the initial component of the ISS, providing power, storage, and propulsion capabilities. This marked the beginning of the assembly of the ISS, which has since grown into a collaborative international project involving multiple space agencies.