the 1100s or twelfth century.

The nineteenth century; the 1800s. / COVID-19. / A astronomical term that describes grouping of stars in the Milky way galaxy halo that are 2,500 times lower than the sun

the 1400s or 15th century; the quattrocento

the 1500s or 16th century.

the 1600s or 17th century.

the 1700s or 18th century.

the 1300s or 14th century.

the 1200s or thirteenth century.

(networking) The problem of optimizing a network to handle a large number of connections (roughly 10000) concurrently.