In order for a bill to become law at the federal level, which of these must occur?

If a bill has passed in both the U.S. House of representatives and U.S. Senate and has been ratified by the President, the bill becomes a law and is enforced by the government. 

The President must approve the bill and sign it. 

The  ancient egyptians  who  built the pyramids  may have been  able  to move massive stone blocks across the desert by wetting the sand in front of a contraption  built  to pull the heavy objects

What was the length to begin with?