Internet Archive Wayback Machine

http://nces.ed.gov/ has been crawled 1,820 times going all the way back to January 20, 1998.

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


				1
	1	1
1	2		1
1				2
		2	1


				1
		1	1		1	1
				1		1
1					1	1
1	2


				1
1	1		1
		1	1		1
					1
1


					2	1
		1
				1
1
	1	1	1			1


			1	1
	1	2		1
		1			1
2				2


				1	1
1
	1	3	1	1
				2
	1	1



1			1			1
1			1	1	1
2	1	1		3
				2

Jan
						January 1, 2011 1 snapshot 00:08:42 1
2	3	4	January 5, 2011 1 snapshot 17:47:35 5	January 6, 2011 1 snapshot 19:59:33 6	7	8
January 9, 2011 1 snapshot 01:52:21 9	10	11	January 12, 2011 2 snapshots 08:35:57 16:04:00 12	13	January 14, 2011 1 snapshot 07:19:25 14	15
January 16, 2011 1 snapshot 12:56:25 16	17	18	19	20	21	January 22, 2011 2 snapshots 09:20:40 22:18:15 22
23	24	25	26	January 27, 2011 2 snapshots 19:11:06 19:13:52 27	January 28, 2011 1 snapshot 14:43:04 28	29
30	31

Feb
		1	2	February 3, 2011 1 snapshot 22:38:15 3	4	5
6	7	February 8, 2011 1 snapshot 02:44:24 8	February 9, 2011 1 snapshot 11:49:32 9	10	February 11, 2011 1 snapshot 02:15:16 11	February 12, 2011 1 snapshot 09:41:09 12
13	14	15	16	February 17, 2011 1 snapshot 15:08:59 17	18	February 19, 2011 1 snapshot 13:07:26 19
February 20, 2011 1 snapshot 01:28:28 20	21	22	23	24	February 25, 2011 1 snapshot 02:52:18 25	February 26, 2011 1 snapshot 21:03:51 26
February 27, 2011 1 snapshot 22:35:49 27	February 28, 2011 2 snapshots 02:42:32 02:43:31 28

Mar
		1	2	3	March 4, 2011 1 snapshot 21:19:31 4	5
6	March 7, 2011 1 snapshot 08:40:02 7	March 8, 2011 1 snapshot 07:51:13 8	9	March 10, 2011 1 snapshot 03:23:57 10	11	12
13	14	15	March 16, 2011 1 snapshot 23:37:49 16	March 17, 2011 1 snapshot 15:07:52 17	18	March 19, 2011 1 snapshot 12:24:15 19
20	21	22	23	24	25	March 26, 2011 1 snapshot 06:16:42 26
27	March 28, 2011 1 snapshot 18:39:38 28	29	30	31

Apr
					April 1, 2011 2 snapshots 18:53:54 18:53:55 1	April 2, 2011 1 snapshot 04:09:31 2
3	4	April 5, 2011 1 snapshot 20:00:46 5	6	7	8	9
10	11	12	13	April 14, 2011 1 snapshot 04:22:56 14	15	16
April 17, 2011 1 snapshot 15:05:43 17	18	19	20	21	22	23
24	April 25, 2011 1 snapshot 15:31:20 25	April 26, 2011 1 snapshot 19:53:00 26	April 27, 2011 1 snapshot 02:16:40 27	28	29	April 30, 2011 1 snapshot 06:42:51 30

May
1	2	3	May 4, 2011 1 snapshot 17:32:58 4	5	May 6, 2011 1 snapshot 20:59:14 6	7
8	May 9, 2011 1 snapshot 10:34:52 9	May 10, 2011 2 snapshots 03:06:39 19:26:02 10	11	12	May 13, 2011 1 snapshot 23:46:47 13	14
15	16	May 17, 2011 1 snapshot 15:03:50 17	18	19	20	May 21, 2011 1 snapshot 19:42:20 21
May 22, 2011 2 snapshots 06:32:02 13:46:48 22	23	24	25	26	May 27, 2011 2 snapshots 04:43:39 11:45:54 27	28
29	30	31

Jun
			1	2	June 3, 2011 1 snapshot 17:11:05 3	June 4, 2011 1 snapshot 05:47:09 4
5	June 6, 2011 1 snapshot 20:36:50 6	7	8	9	10	11
12	13	June 14, 2011 1 snapshot 17:19:48 14	June 15, 2011 3 snapshots 00:39:56 00:43:28 01:06:03 15	June 16, 2011 1 snapshot 23:37:32 16	June 17, 2011 1 snapshot 15:07:10 17	18
19	20	21	22	23	June 24, 2011 2 snapshots 07:23:03 13:14:31 24	25
26	27	June 28, 2011 1 snapshot 18:27:26 28	June 29, 2011 1 snapshot 10:54:42 29	30

Jul
					1	2
July 3, 2011 1 snapshot 21:02:19 3	4	5	July 6, 2011 1 snapshot 06:55:36 6	7	8	July 9, 2011 1 snapshot 19:56:38 9
July 10, 2011 1 snapshot 02:18:11 10	11	12	July 13, 2011 1 snapshot 01:39:10 13	July 14, 2011 1 snapshot 00:42:12 14	July 15, 2011 1 snapshot 20:14:12 15	16
July 17, 2011 2 snapshots 15:05:26 17:59:48 17	July 18, 2011 1 snapshot 08:36:36 18	July 19, 2011 1 snapshot 20:15:18 19	20	July 21, 2011 3 snapshots 03:52:41 04:00:02 08:24:26 21	22	23
24	25	26	27	July 28, 2011 2 snapshots 16:48:49 23:01:33 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://nces.ed.gov/ was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.

January 1, 2011

January 5, 2011

January 6, 2011

January 9, 2011

January 12, 2011

January 14, 2011

January 16, 2011

January 22, 2011

January 27, 2011

January 28, 2011

February 3, 2011

February 8, 2011

February 9, 2011

February 11, 2011

February 12, 2011

February 17, 2011

February 19, 2011

February 20, 2011

February 25, 2011

February 26, 2011

February 27, 2011

February 28, 2011

March 4, 2011

March 7, 2011

March 8, 2011

March 10, 2011

March 16, 2011

March 17, 2011

March 19, 2011

March 26, 2011

March 28, 2011

April 1, 2011

April 2, 2011

April 5, 2011

April 14, 2011

April 17, 2011

April 25, 2011

April 26, 2011

April 27, 2011

April 30, 2011

May 4, 2011

May 6, 2011

May 9, 2011

May 10, 2011

May 13, 2011

May 17, 2011

May 21, 2011

May 22, 2011

May 27, 2011

June 3, 2011

June 4, 2011

June 6, 2011

June 14, 2011

June 15, 2011

June 16, 2011

June 17, 2011

June 24, 2011

June 28, 2011

June 29, 2011

July 3, 2011

July 6, 2011

July 9, 2011

July 10, 2011

July 13, 2011

July 14, 2011

July 15, 2011

July 17, 2011

July 18, 2011

July 19, 2011

July 21, 2011

July 28, 2011

Note