The summation of the two individual supply curves will generate the market supply curve for that product. Consider two wineries in the Paso Robles region. Paso Winery may be willing to supply 20 bottles if the market price were $10/bottle but willing to supply 100 bottles if the price were $50/bottle.
The California Gold Rush (1848-1855) began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California.
The spark that ignited the gold rush occurred in May 1848 when Sam Brannan, a storekeeper in Sutter's Creek, brandished a bottle filled with gold dust around San Francisco shouting 'Gold! Gold! Gold from American River!' The residents of the city now had proof of the discovery and the stampede to the gold fields was on.