Final answer:
Thomas Paine's comparison of attempts to reconcile with Britain after the Battle of Lexington and Concord to an old almanac signifies that these attempts were outdated and no longer relevant. Investigations revealed that both sides sought a union with Great Britain but differed in their methods. The British use of force had failed, and Britain's influence had diminished.
Step-by-step explanation:
Thomas Paine's comparison of attempts to reconcile with Britain after the Battle of Lexington and Concord to an old almanac means that these attempts were outdated and no longer relevant. Just like an old almanac, which contains information from the previous year the plans and proposals made prior to the battle were superseded and rendered useless by the events that transpired. Investigations soon revealed that both sides, despite advocating for a union with Great Britain, differed in their methods of achieving it - one through force and the other through friendship. However, the use of force by the British had failed, and Britain's influence had waned.