Re-order Paragraphs

Put the sentences in the correct order:

1. ▲▼This breakthrough dramatically reduced shipwrecks and opened safer, faster trade routes across the globe.
2. ▲▼His invention allowed a navigator to compare local noon with the home port's clock and convert the difference into distance.
3. ▲▼To solve this, the clockmaker John Harrison spent years building a marine timepiece accurate enough to keep that reference time at sea.
4. ▲▼The core difficulty was that calculating longitude required knowing the precise time at a distant reference port.
5. ▲▼In the early nineteenth century, sailors crossing the open ocean had no reliable way to fix their position from east to west.