Which document allowed the colonists to make treaties and establish a postal service

The Articles Of Confederation gave the united states the power to establish the U.S. postal service, as well as make treaties.

https://www.history.com/topics/early-us/articles-of-confederation

"But Congress would exercise considerable powers: it was given jurisdiction over foreign relations with the authority to make treaties and alliances; it could make war and peace, maintain an army and navy, coin money, establish a postal service, and manage Indian affairs; it could establish admiralty courts; and it ..."

https://www.monticello.org/site/research-and-collections/postal-service

"Benjamin Franklin was appointed as postmaster general. Despite a clause in the Articles of Confederation to establish a federal post office, Congress waited until October 18, 1782, to pass "An Ordinance for Regulating the Post-Office of the United States of America.""

both believe in many god or polytheism

both built temples that they worshiped in both civilization's god were humanoid

both groups made religion a large portion of their lives

both believe in one religion throughout

the dead were buried with items for the afterlife

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.