technology timeline By chris7 1901 the first radeo mesage sent it was sent across the antic ocean 1906 the first am radio station 1910 headphones the first par of headphones where made 1943 carta coulter it was the smallest mechanical thing when it was made 1951 squee was made it is the robot squirrel 1963 the rancho robot it is a robot arm 1972 pong was released it was a vary popular game