http://www.library.vanderbilt.edu/ has been crawled 659 times going all the way back to December 27, 1996.

A crawl can be a duplicate of the last one. It happens about 25% of the time across 420,000,000 websites. FAQ

Jan
1
2
3
4
5

January 6, 2011

1 snapshot

6

January 7, 2011

1 snapshot

7
8
9
10
11
12
13
14
15

January 16, 2011

1 snapshot

16
17
18
19
20
21
22
23

January 24, 2011

2 snapshots

24

January 25, 2011

2 snapshots

25
26
27
28
29
30
31
Feb
1
2

February 3, 2011

1 snapshot

3

February 4, 2011

3 snapshots

4
5
6
7
8
9
10

February 11, 2011

1 snapshot

11
12
13
14
15
16
17
18

February 19, 2011

2 snapshots

19
20
21
22
23
24
25
26
27
28
Mar
1
2

March 3, 2011

1 snapshot

3
4
5
6

March 7, 2011

3 snapshots

7
8
9
10
11

March 12, 2011

1 snapshot

12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Apr
1
2
3
4
5
6

April 7, 2011

1 snapshot

7
8
9
10
11
12
13

April 14, 2011

1 snapshot

14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
May
1
2
3
4

May 5, 2011

1 snapshot

5
6
7
8
9

May 10, 2011

1 snapshot

10
11
12
13

May 14, 2011

1 snapshot

14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

May 31, 2011

2 snapshots

31
Jun
1

June 2, 2011

1 snapshot

2
3
4
5
6
7
8
9
10
11

June 12, 2011

2 snapshots

12
13
14
15

June 16, 2011

2 snapshots

16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Jul
1

July 2, 2011

1 snapshot

2
3
4
5
6
7

July 8, 2011

1 snapshot

8
9
10
11
12
13

July 14, 2011

1 snapshot

14

July 15, 2011

1 snapshot

15

July 16, 2011

1 snapshot

16
17
18
19
20

July 21, 2011

1 snapshot

21

July 22, 2011

1 snapshot

22
23
24
25
26
27
28
29
30
31
Aug
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Sep
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Oct
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Nov
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Dec
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

Note

This calendar view maps the number of times http://www.library.vanderbilt.edu/ was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.