To provide defense against these sporadic attacks, the early settlers erected a series of forts in the area. Wood's Fort guarded the Forks-of-the-River just downstream from Newport, and McCoy's Fort and Whitson's Fort defended the area to the south.
The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast majority of the system's mass is in the Sun, with most of the remaining mass contained in Jupiter.
The method is to use the age of meteorites, because they are thought to have formed very early in the history of the Solar System. These ages are found using radioactive dati â¦ ng methods. The Solar System is estimated to be about 4.6 thousand million years old. 2 people found this useful.