1949

800s	1978	2002
1793	1982	2003
1822	1987	2004
1895	1988	2005
1928	1989	2006
1943	1990	2008
1946	1991	2009
1949	1992	2010
1950s	1993	2011
1960s	1997	2013
1970s	2000	2014
1972	2001	2015

1949

Sir Arnold Burgen and colleagues discover that botulinum toxin blocks neurotransmitter release at the neuromuscular junction.