Related by context. Frequent words. (Click for all words.) 36 fatal crashes 35 fatalities 35 collisions 34 crashes 32 braking 31 Crashes 31 seat belts 31 ascendancy 31 fatality 30 abolished 30 NHTSA 30 dawning 30 twentieth century 30 seatbelts 30 wearing seatbelts 29 advent 29 Sixties 29 wrecks 28 wearing seat belts 28 accidents 28 seventies 27 Dark Ages 27 colonization 27 sixties 27 fatal accidents 26 eighties 26 deaths 26 drivers 26 wreck 26 wearing seatbelt 26 Eighties 26 #st century 26 reintroduced 26 onset 26 democratization 25 epoch 25 seat belt 25 seatbelt 25 crash 25 millennium 24 incidences 24 collision 24 tragedies 24 swerve 24 Deaths 24 Crash 24 inevitable 24 DUI arrests 24 Centuries 24 upheavals 24 Industrial Revolution 24 Seventies 24 sudden acceleration 24 dawn 24 whiplash 24 immemorial 24 oncoming 23 modern 23 revolutions 23 reintroduction 23 Nineties 23 nineteenth century 23 nineties 23 era 23 Accidents 23 legalized 23 wearing helmet 23 '#s [003] 23 quantum leap 23 zenith 23 decline 23 wearing helmets 23 Golden Age 23 forerunner 23 advancements 23 incidents 22 rollover 22 technological advances 22 motorcyclists 22 accident 22 bubble burst 22 liberalized 22 #s [002] 22 careless driving 22 homicides 22 technological advancement 22 beginning 22 centuries 22 evolution 22 sightings 22 break ins 22 rollovers 22 uptake 21 resurgence 21 primitive 21 st century 21 vogue 21 rollover accident 21 radically 21 emergence 21 swerving