Yes, but Newton's insight was that the ground has mass too, and that things fall because masses are attracted to each other. Before that, people knew things fe

Yes, but Newton's insight was that the ground has mass too, and that things fall because masses are attracted to each other. Before that, people knew things fell down, but it hadn't occurred to them that this was caused by masses attracting each other, or that the ground is being attracted to the falling object.