Coverage Across Time
Every source in the corpus, bucketed by year and type. Hover any column for the per-type breakdown. Catalog-only sources (Articles mostly) are included so this reflects the full footprint, not just what's indexed for search.
Indexed for search
3,762 / 3,878
By typeLetters107Meetings416Interviews149Lectures17Essays30Op-Eds12Books16Meeting notes29Podcasts39Articles3,063
Sources per year
Tallest year is 413 sources. Hover columns for details.
1966
4 sources
Letters: 2
Articles: 2
1969
2 sources
Letters: 1
Articles: 1
1970
2 sources
Letters: 1
Articles: 1
1977
3 sources
Letters: 2
Articles: 1
1980
3 sources
Letters: 2
Books: 1
1984
5 sources
Letters: 2
Essays: 2
Op-Eds: 1
1985
3 sources
Letters: 2
Interviews: 1
1986
3 sources
Letters: 2
Lectures: 1
1988
5 sources
Letters: 2
Articles: 3
1989
4 sources
Letters: 2
Essays: 1
Books: 1
1990
4 sources
Letters: 2
Articles: 2
1991
10 sources
Letters: 2
Interviews: 1
Lectures: 1
Articles: 6
1993
3 sources
Letters: 2
Articles: 1
1994
9 sources
Letters: 2
Meetings: 5
Lectures: 1
Meeting notes: 1
1995
15 sources
Letters: 2
Meetings: 9
Lectures: 1
Books: 1
1996
35 sources
Letters: 2
Meetings: 21
Interviews: 6
Lectures: 1
1997
26 sources
Letters: 2
Meetings: 20
Interviews: 1
Books: 1
1998
12 sources
Letters: 2
Meetings: 5
Lectures: 3
Essays: 1
1999
30 sources
Letters: 2
Meetings: 22
Interviews: 1
Essays: 1
2000
21 sources
Letters: 2
Meetings: 12
Essays: 3
Op-Eds: 1
2001
20 sources
Letters: 2
Meetings: 12
Essays: 3
Meeting notes: 1
2002
21 sources
Letters: 2
Meetings: 11
Essays: 3
Op-Eds: 2
2003
33 sources
Letters: 2
Meetings: 19
Lectures: 1
Essays: 2
2004
23 sources
Letters: 2
Meetings: 16
Interviews: 1
Essays: 1
2005
27 sources
Letters: 2
Meetings: 20
Essays: 1
Books: 1
2006
18 sources
Letters: 2
Meetings: 3
Interviews: 4
Essays: 2
2007
26 sources
Letters: 2
Meetings: 20
Lectures: 1
Essays: 1
2008
50 sources
Letters: 2
Meetings: 25
Interviews: 4
Lectures: 1
2009
30 sources
Letters: 2
Meetings: 12
Interviews: 2
Essays: 1
2010
106 sources
Letters: 1
Meetings: 33
Interviews: 59
Lectures: 1
2011
20 sources
Letters: 1
Meetings: 3
Interviews: 2
Essays: 2
2012
209 sources
Letters: 1
Meetings: 20
Interviews: 3
Lectures: 1
2013
152 sources
Letters: 1
Meetings: 8
Interviews: 3
Books: 1
2014
175 sources
Letters: 1
Meetings: 25
Interviews: 2
Essays: 1
2015
178 sources
Letters: 1
Meetings: 21
Interviews: 3
Books: 1
2016
166 sources
Letters: 1
Meetings: 2
Interviews: 13
Books: 1
2017
369 sources
Letters: 1
Meetings: 2
Interviews: 20
Lectures: 2
2018
413 sources
Letters: 1
Meetings: 21
Interviews: 11
Books: 1
2019
251 sources
Letters: 1
Meetings: 4
Interviews: 4
Meeting notes: 1
2020
163 sources
Letters: 1
Meetings: 6
Interviews: 1
Lectures: 2
2021
106 sources
Letters: 1
Meetings: 6
Meeting notes: 1
Podcasts: 9
2022
173 sources
Letters: 1
Meetings: 7
Interviews: 1
Meeting notes: 1
2023
244 sources
Letters: 1
Meetings: 11
Interviews: 4
Op-Eds: 1
2024
301 sources
Letters: 1
Meetings: 8
Essays: 1
Podcasts: 2
2025
295 sources
Letters: 1
Meetings: 7
Podcasts: 6
Articles: 281
2026
75 sources
Interviews: 2
Podcasts: 1
Articles: 72
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Top years by source count
2018413 sources
Articles 377Meetings 21Interviews 11Books 1Letters 1Meeting notes 1Podcasts 1
2017369 sources
Articles 341Interviews 20Lectures 2Podcasts 2Meetings 2Letters 1Meeting notes 1
2024301 sources
Articles 289Meetings 8Podcasts 2Essays 1Letters 1
2025295 sources
Articles 281Meetings 7Podcasts 6Letters 1
2019251 sources
Articles 239Interviews 4Meetings 4Podcasts 2Letters 1Meeting notes 1
2023244 sources
Articles 216Meetings 11Podcasts 9Interviews 4Books 1Letters 1Meeting notes 1Op-Eds 1
2012209 sources
Articles 182Meetings 20Interviews 3Books 1Lectures 1Letters 1Op-Eds 1
2015178 sources
Articles 151Meetings 21Interviews 3Books 1Letters 1Meeting notes 1