SOLAR CORONA - FROM SHKLOVSKY TO OUR DAYS

Fundamental advances in the physics of the solar corona from the 1960' s to the present time are briefly reviewed. Progress in coronal invest igations has mainly been associated with major space missions, which h ave discovered such new phenomena ads coronal holes and coronal mass e jections, and have enabled detailed study of coronal arch systems. The role of magnetic fields on various scales in quasi-steady-state pheno mena is discussed for various phases of the solar activity cycle.