Pheidippides was important because he ran to sparta to gather spartian troops to fight against Persians.
Answer:
why
Explanation:
I don't know why that is necessarily happening
<em><u>Answer: At the start of the 1970s the term 'sustainable development' was coined, probably by Barbara Ward (Lady Jackson), founder of the International Institute for Environment and Development (see Ward & Dubos 1972).</u></em>