Greece 479 BC, after the legendary victory of Greeks against persians the altar of the city of Plataea had no fire because the barbarians destroy it thus according to the customs the city has a "miasma". Sacred fire must come from the Delphi were the Sanctuary of Apollo is, someone had to bring it and fastest as he can.
One of the soldiers which fought in the battle was Euchidas, he volunteered to run to Delphi although he was tired from battle. He started running without second thought because his mission was sacred he must cover a distance of 1000 stadium [equivalent to 185 kilometers] through gorges, narrow paths, rocks, rivers and mountains without stopping!
Euchidas having the Gods in his side will manage to arrive in Dephi and take the Holy Fire, will be purified at Kastalia Fountain, will wear a laurel wreath and take the Holy Fire and return to Plataea in 24 hours to deliver it without any delay for rest!
When he lit the fire on the altar that had been set up to celebrate the victory in the battle, he embraced his fellow soldiers and exhausted passed away in their arms. In his grave they carved the phrase: «Ευχίδας Πυθώδε τρέξας ήλθοε τώδ' αυθημερόν» which means «Euchidas ran to Pythia and returned the same day».
The route now it's 107,5 Km, you can see it in a video on the map:
https://youtu.be/zk64mkknYU0
I am smoking McClelland grand orientals Yenice Agonya in the memory of my brave countryman.