Answer:
1. It led to the development of the Internet.
2. The first message was sent through ARPANET in 1969 and it was decommissioned in 1990.
3. It was created to connect geographically dispersed researchers with high powered research computers.
Step-by-step explanation:
ARPANET which stands for Advanced Research Projects Agency Network, was originally a form of network designed to provide wide-area packet-switching network combined with functions of control distribution through execution of the TCP/IP protocol suite.
Consequently, it led to the specialized establishment and creation of internet. Also, during its execution the first message sent through ARPANET was in 1969 and it was later decommissioned in 1990. The idea behind ARPANET creation was to connect geographically dispersed researchers with high powered research computer.