#3 He wrote a popular book on his travels known as The Voyage of the Beagle. In the years following his return from the voyage, Charles Darwin compiled a book in which he shared his experiences and observations during the voyage. Now known as The Voyage of the Beagle, the book was published in 1839.
How much should you train if you want to run a good half marathon? There are two distinct types of runners who ask this question: the first-time half marathon runner who runs just 2 to 3 days a week for 3 to 5 miles.
Runners training for a half or full marathon should do this workout once every two weeks. If your 5-K pace is slower than an eight-minute mile, run repeat 1-Ks (1000 meters) instead of miles to ensure you can maintain the pace and to avoid undue fatigue, says Kastor.