People who never develop symptoms or are not yet showing symptoms (pre-symptomatic) might not know that they are infected but can still spread rona to others. Masks also offer protection to the wearer.
The answer to your beloved question that you have asked this wondrous people is the Overland trail.<span />
Galileo Galilei rejected the idea of Geocentric View and supported Heliocentric View
Symbols OR diagrams that could potentially be drawn to represent the Articles of Confederation include: a symbol of 13 stars and/or stripes to represent the thirteen original colonies, a diagram outlining the major point of each of the thirteen articles within the Articles, a symbol of each state representative holding hands representing the Confederation's friendship, symbols of war to represent article nine (such as bayonets, a soldiers uniform, or cannons, etc.).