Historical clue formulations

• Journeys by foot — 2025-10-30
• The travels of Marco Polo, e.g. — 2025-06-28
• Arduous walks — 2025-04-30
• Long hauls — 2024-02-22
• Safaris, e.g. — 2023-12-09
• Arduous journeys — 2023-03-12
• Pioneers' trips west, e.g. — 2022-07-02
• Long hikes — 2019-09-29
• Long hauls — 2019-08-03
• Takes a hike — 2019-03-02
• Difficult journeys — 2018-07-08
• Long, hard journeys — 2017-09-25
• Long, hard journeys — 2017-05-01
• Odysseys — 2016-06-06
• Arduous journeys — 2014-10-06
• Long expeditions — 2013-03-03
• Long, arduous walks — 2010-02-15
• Journeys — 2010-01-27
• Some migrations — 2009-03-19
• Plodding journeys — 2009-03-02
• Wilderness walks — 2008-09-24
• Arduous journeys — 2006-02-13
• Tough trips — 2005-07-05
• Expeditions — 2005-04-16
• Slogs far afield — 2004-04-10
• Arduous journeys — 1996-09-09