Hippocrates improved the practice of medicine by: Advocating a sound diet and good hygiene.
Collecting descriptions of symptoms of various illnesses.
Encouraging collaboration of ideas between doctors.
All of the Above

answer; ///i believe that the correct answer is ; hieroglyphs or glyphs; the maya script, also known as maya glyphs, was the writing system of the maya civilization of mesoamerica; as always plz check first..good luck

answer: your option is d

explanation:

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation:

hello,

what started the norman conquest?

profound political, administrative, and social changes in the british isles. last line of my information: )