http://chronicle.com/ has been crawled 1,112 times going all the way back to October 31, 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

January 5, 2011

1 snapshot

5
6

January 7, 2011

1 snapshot

7
8
9

January 10, 2011

1 snapshot

10

January 11, 2011

1 snapshot

11
12
13
14
15
16
17
18

January 19, 2011

1 snapshot

19
20

January 21, 2011

1 snapshot

21
22

January 23, 2011

1 snapshot

23
24
25
26

January 27, 2011

2 snapshots

27

January 28, 2011

2 snapshots

28
29

January 30, 2011

1 snapshot

30

January 31, 2011

2 snapshots

31
Feb
1

February 2, 2011

1 snapshot

2

February 3, 2011

1 snapshot

3
4

February 5, 2011

1 snapshot

5
6
7
8

February 9, 2011

1 snapshot

9
10
11

February 12, 2011

1 snapshot

12
13
14
15
16
17
18

February 19, 2011

2 snapshots

19
20
21
22

February 23, 2011

1 snapshot

23
24

February 25, 2011

1 snapshot

25

February 26, 2011

1 snapshot

26
27
28
Mar
1

March 2, 2011

1 snapshot

2

March 3, 2011

1 snapshot

3
4

March 5, 2011

2 snapshots

5
6
7
8
9
10

March 11, 2011

1 snapshot

11

March 12, 2011

1 snapshot

12
13
14
15

March 16, 2011

1 snapshot

16
17

March 18, 2011

1 snapshot

18
19
20
21
22
23
24
25
26
27
28
29
30
31
Apr
1
2
3
4
5
6
7
8
9

April 10, 2011

1 snapshot

10

April 11, 2011

1 snapshot

11
12
13
14
15
16
17
18
19

April 20, 2011

1 snapshot

20
21
22
23
24
25
26
27
28
29
30
May

May 1, 2011

1 snapshot

1
2
3
4
5
6
7
8
9
10
11

May 12, 2011

1 snapshot

12
13
14

May 15, 2011

1 snapshot

15
16
17
18
19
20
21
22
23

May 24, 2011

1 snapshot

24

May 25, 2011

2 snapshots

25
26
27
28
29
30
31
Jun
1
2
3
4
5
6
7
8
9
10

June 11, 2011

1 snapshot

11
12

June 13, 2011

1 snapshot

13
14
15

June 16, 2011

1 snapshot

16
17
18
19
20

June 21, 2011

1 snapshot

21

June 22, 2011

1 snapshot

22
23
24
25
26
27
28

June 29, 2011

1 snapshot

29
30
Jul
1

July 2, 2011

1 snapshot

2
3
4
5

July 6, 2011

1 snapshot

6
7

July 8, 2011

3 snapshots

8

July 9, 2011

1 snapshot

9

July 10, 2011

1 snapshot

10
11
12

July 13, 2011

1 snapshot

13
14
15
16
17
18

July 19, 2011

2 snapshots

19
20
21
22
23
24
25
26
27

July 28, 2011

1 snapshot

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://chronicle.com/ was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.