Related by context. Frequent words. (Click for all words.) 54 humans Homo sapiens 52 compatriot Haile Gebrselassie 50 Spartathlon 49 Turkey Mustafa Kemal 49 BY MICHELLE FENECH 48 Businessportal#.com 46 deliver lifesaving diphtheria 46 trans Sahara 46 PetSmart Charities celebrated 46 BY VINCENT MAO 46 Germanic pope 45 modern 45 foulest weather 45 #.#km swim #km [002] 45 Sammy Korir 45 Thick smoke obscured 45 Marathon MissFit Connie 44 Ethiopia Kenenisa Bekele 44 #.#km [009] 44 Kenya Geoffrey Mutai 44 mysterious uncharted 44 Mizuki Noguchi 44 Nabateans 44 Altai Mountains 44 Archaeologists unearth 43 Mongol empire 43 Dangrek Mountains 43 ACM SIGGRAPH Conference 43 Stefano Baldini 43 Evros River 43 fully abled 43 ultra marathons 43 Minoan civilization 43 classical antiquity 42 Patrick Ivuti 42 intercourse equals 42 Kievan Rus 42 surpassed Jimmie Foxx 42 LabCorp combines 42 narrow cobblestone streets 42 #.#km swim #km [001] 42 Daglica 42 website www.bridgewaterequity.com 42 Kushitic 42 remotest regions 42 prophet Muhammad grandson 42 trans Saharan 42 vast steppe 41 camel caravans 41 Assyrian empire 41 #mile [001] 41 flooded causeway 41 DAILY RFID specialize 41 hikers bicyclists 41 earth orbiting LEO 41 Ethiopia Deriba Merga 41 Molly Thornberg 41 Minoans 41 www.thestar.com online 41 Lauberhorn course 41 Aksum 41 emperor Constantine 41 monkeys apes 41 NICHD sponsors research 41 Rui Silva 40 #.#miles [001] 40 Graeco Roman 40 Dutchman Pieter van den 40 snowshoe trails 40 walkers bikers 40 Fertile Crescent 40 Kissufim border 40 preindustrial 40 Notes @ Biggio 40 Autodromo Nazionale di 40 Byzantine empire 40 Himalayan plateau 40 ancient Mesopotamia 40 Synthetic biology 40 chariot racing 40 Italy Filippo Pozzato 40 legendary mountaineer adventurer 40 egalitarian utopia 40 Tino Edelmann 40 Medellin brother Vernancio 40 Monica Bielanko 39 Teddy Higuera 39 glacier carved 39 Uzbek Kyrgyz 39 metalled road 39 industrialization urbanization 39 Edwinna Herrera Who 39 Femke Heemskerk 39 barren steppes 39 Greek historian Herodotus 39 extinct mammals 39 unforgiving terrain 39 Arabian Desert 39 resident Nicole Stott 39 aurochs 39 Inca Empire