http://mapy.cz has been crawled 2,517 times going all the way back to December 12, 1998.

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
6
7
8

January 9, 2011

1 snapshot

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

January 30, 2011

1 snapshot

30

January 31, 2011

1 snapshot

31
Feb
1

February 2, 2011

1 snapshot

2

February 3, 2011

1 snapshot

3
4
5
6

February 7, 2011

1 snapshot

7

February 8, 2011

3 snapshots

8

February 9, 2011

2 snapshots

9
10

February 11, 2011

1 snapshot

11
12
13
14
15
16
17
18
19
20
21
22
23
24

February 25, 2011

1 snapshot

25
26
27
28
Mar
1
2
3

March 4, 2011

1 snapshot

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
Apr
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

April 23, 2011

1 snapshot

23
24
25
26
27
28
29

April 30, 2011

1 snapshot

30
May
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

May 22, 2011

1 snapshot

22
23

May 24, 2011

1 snapshot

24
25
26
27
28
29
30
31
Jun
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
Jul
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

July 18, 2011

3 snapshots

18
19

July 20, 2011

2 snapshots

20
21
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://mapy.cz was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.