\begin{table}%t1
\caption{Approximate dates (in -BC/AD) of grand minima in the SN-L series (see text).}\label{Tab:min}
%\centerline
{\begin{tabular}{cllc}
\hline\hline
No.& center & duration & comment\\
\hline
1 & 1680 & 80 & Maunder \\
2 & 1470 & 160 & Sp\"orer \\
3 & 1305 & 70 & Wolf \\
4 & 1040 & 60 &  a) \\
5 & 685 & 70 & b) \\
6 & --360 & 60 & a, b, c) \\
7 & --765 & 90 & a, b, c) \\
8 & --1390 & 40 & b, e) \\
9 & --2860 & 60 & a, c) \\
10 & --3335 & 70 & a, b, c) \\
11 & --3500 & 40 & a, b, c) \\
12 & --3625 & 50 & a, b) \\
13 & --3940 & 60 & a, c) \\
14 & --4225 & 30 & c) \\
15 & --4325 & 50 & a, c) \\
16 & --5260 & 140 & a, b) \\
17 & --5460 & 60 & c) \\
18 & --5620 & 40 & -- \\
19 & --5710 & 20 & c) \\
20 & --5985 & 30 & a, c) \\
21 & --6215 & 30 & c, d) \\
22 & --6400 & 80 & a, c, d) \\
23 & --7035 & 50 & a, c) \\
24 & --7305 & 30 & c) \\
25 & --7515 & 150 & a, c) \\
26 & --8215 & 110 & -- \\
27 & --9165 & 150 & -- \\
\hline
\end{tabular}}
\smallskip
a) Discussed in Stuiver (1980) and Stuiver \& Braziunas (1989).\\
b) Discussed in Eddy (1977a,b).\\
c) Shown in Goslar (2003).\\
d) Exact duration is uncertain.\\
e) Does not appear in the SN-S series.
\end{table}