Date |
Event |
Duration
(months)
|
Duration
(years)
|
1927 |
Experiment set up |
|
|
1930 |
The stem was cut |
|
|
December 1938 |
1st drop fell |
96–107 |
8.0–8.9 |
February 1947 |
2nd drop fell |
99 |
8.2 |
April 1954 |
3rd drop fell |
86 |
7.2 |
May 1962 |
4th drop fell |
97 |
8.1 |
August 1970 |
5th drop fell |
99 |
8.3 |
April 1979 |
6th drop fell |
104 |
8.7 |
July 1988 |
7th drop fell |
111 |
9.2 |
28 November 2000 |
8th drop fell |
148 |
12.3 |