What was the first battle of the american revolution known as

The Battles of Lexington and Concord

Explanation:

The Battles of Lexington and Concord, fought on April 19, 1775, kicked off the American Revolutionary War (1775-83).

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.