Milestones in the History of Dislocations

Here are a few of the major milestones in the discovery of dislocations:
	Theory of Elasticity	Timpe (1905) Volterra (1907)

	Theoretical shear limit	Frenkel (1926)

	"Verhakungen"	Dehlinger (1929)

	Postulate of (edge) dislocations	Orowan (1934) Polanyi (1934) Taylor (1934)
	Postulate of screw dislocations	Burgers (1939)

	Multiplication mechanisms of dislocations	Frank-Read (1950)

	Direct observation of dislocations (TEM)	Hirsch et al. (1956)

	Dislocation free Si crystal growth	Dash (1960)

These discoveries solved the 3000 year old puzzles of metallurgy! But no Noble prizes were awarded and mankind hardly noticed that something big has happened.