What contributions or achievements did ancient greece make in visual arts, science, architecture, literature, theater and medicine

The Greeks made major contributions to math and science.  We owe our basic concept of math to ancient Greek mathematicians.  Some of the first astronomical models were developed by Ancient Greeks.  Hippocrates is a famous Greek physician who established a medical school.  He is credited as being the founder of modern medicine. Aristotle and Plato were 2 Greek philosophers who wrote about biology and drama.  The works of Greek playwrights like Sophocles and Aristophanes formed the foundation upon which all modern theatre is based.

d. it gave farmers a way to organize for more political power