  A disk-shaped universe (encompassing the observable universe) rotating
globally with an angular speed equal to the Hubble constant is postulated. It
is shown that dark energy and dark matter are cosmic inertial effects resulting
from such a cosmic rotation, corresponding to centrifugal (dark energy), and a
combination of centrifugal and the Coriolis forces (dark matter), respectively.
The physics and the cosmological and galactic parameters obtained from the
model closely match those attributed to dark energy and dark matter in the
standard {\Lambda}-CDM model.
