When did thomas jefferson wrote the declaration of independence?

What were two theories put forth by marx?

1. what was william harvey's discovery about the human body? @ two types of blood flowed through the veins and arteries. b four fluids existed in the body: blood, yellow bile, black bile, and phlegm. © the same blood flowed through the veins and arteries. d ancient ideas of human anatomy and bodily functions were wrong. done

The vedic age is known for of all of following except the concept of zero hinduism the vedic calendar the use of manure to enrich the soil