In today's information technology world, the Internet of Things is a popular notion. In the future, the Internet of Things will turn everyday things into intelligent virtual objects. The Internet of Things (IoT) aims to integrate everything in our environment together under a unified infrastructure, allowing us to not only control but also keep track of our surroundings. According to an analysis of IoT history, the number of IoT devices has increased in recent years and is expected to grow dramatically in the coming years, indicating that IoT will interact in every aspect of our lives. The applications of IoT vary from a small network like home automation to large networks like cloud-based industry applications. This paper revisits the some important historical events of Internet of Things from the beginning. Furthermore, Many State of Art applications of IoT are presented in this article. This research will be useful and helpful for future research in the field of IoT.