Why do you think pandemics became a worldwide issue starting in the 1900’s?

Pandemics became a worldwide issue starting in the 1900s because we began to travel around the world much faster. Around this time we began to perfect travel across the sea by boat and air, which allowed disease to be spread much faster.

Explanation:

the government paid religious orders to provide basic education to native american children on reservations. in the late 19th and early 20th centuries, the bureau of indian affairs (bia) founded additional boarding schools based on the assimilation model of the off-reservation carlisle indian industrial school.

the national congress's powers over the states were specific and definite: it had the sole power to negotiate treaties, declare war, and make peace. all powers not granted to congress were reserved for state governments. congress had no power to levy taxes, for example.