- 11:09, 14 June 2022 diff hist -4 31st IAC IAA History of Astronautics Symposium 1997
- 11:08, 14 June 2022 diff hist -4 32nd IAC IAA History of Astronautics Symposium 1998
- 11:08, 14 June 2022 diff hist -4 33rd IAC IAA History of Astronautics Symposium 1999
- 11:08, 14 June 2022 diff hist -4 34th IAC IAA History of Astronautics Symposium 2000
- 11:08, 14 June 2022 diff hist -4 35th IAC IAA History of Astronautics Symposium 2001
- 11:07, 14 June 2022 diff hist -4 36th IAC IAA History of Astronautics Symposium 2002
- 11:07, 14 June 2022 diff hist -4 37th IAC IAA History of Astronautics Symposium 2003
- 11:07, 14 June 2022 diff hist -4 38th IAC IAA History of Astronautics Symposium 2004
- 11:07, 14 June 2022 diff hist -4 39th IAC IAA History of Astronautics Symposium 2005
- 11:06, 14 June 2022 diff hist -4 40th IAC IAA History of Astronautics Symposium 2006
- 11:06, 14 June 2022 diff hist -4 41st IAC IAA History of Astronautics Symposium 2007
- 11:06, 14 June 2022 diff hist -4 42nd IAC IAA History of Astronautics Symposium 2008
- 11:06, 14 June 2022 diff hist -4 43rd IAC IAA History of Astronautics Symposium 2009
- 11:05, 14 June 2022 diff hist -4 44th IAC IAA History of Astronautics Symposium 2010
- 11:05, 14 June 2022 diff hist -4 45th IAC IAA History of Astronautics Symposium 2011
- 11:04, 14 June 2022 diff hist -4 46th IAC IAA History of Astronautics Symposium 2012
- 11:04, 14 June 2022 diff hist -4 47th IAC IAA History of Astronautics Symposium 2013
- 11:04, 14 June 2022 diff hist -4 48th IAC IAA History of Astronautics Symposium 2014
- 11:03, 14 June 2022 diff hist -4 49th IAC IAA History of Astronautics Symposium 2015
- 11:03, 14 June 2022 diff hist -4 50th IAC IAA History of Astronautics Symposium 2016
- 11:03, 14 June 2022 diff hist -4 51st IAC IAA History of Astronautics Symposium 2017
- 11:00, 14 June 2022 diff hist -4 52nd IAC IAA History of Astronautics Symposium 2018
- 11:00, 14 June 2022 diff hist -4 53rd IAC IAA History of Astronautics Symposium 2019
- 11:00, 14 June 2022 diff hist -4 54th IAC IAA History of Astronautics Symposium 2020
- 10:59, 14 June 2022 diff hist -4 55th IAC IAA History of Astronautics Symposium 2021
- 10:59, 14 June 2022 diff hist -4 56th IAC IAA History of Astronautics Symposium 2022
- 10:58, 14 June 2022 diff hist -9 IAC IAA History of Astronautics Symposium
- 10:55, 14 June 2022 diff hist -13 1st IAC IAA Symposium on Space Technology Developments and Novel Missions 2003
- 10:55, 14 June 2022 diff hist -13 2nd IAC IAA Symposium on Stepping Stones to the Future: Strategies, Architectures, Concepts and Technologies 2004
- 10:54, 14 June 2022 diff hist -13 3rd IAC IAA Symposium on Stepping Stones to the Future: Strategies, Architectures, Concepts and Technologies 2005
- 10:54, 14 June 2022 diff hist -13 4th IAC IAA Symposium on Stepping Stones to the Future: Strategies, Architectures, Concepts and Technologies 2006
- 10:54, 14 June 2022 diff hist -13 5th IAC IAA Symposium on Stepping Stones to the Future: Strategies, Architectures, Concepts and Technologies 2007
- 10:53, 14 June 2022 diff hist -13 6th IAC IAA Symposium on Stepping Stones to the Future: Strategies, Architectures, Concepts and Technologies 2008
- 10:53, 14 June 2022 diff hist -13 7th IAC IAA Symposium on Stepping Stones to the Future: Strategies, Architectures, Concepts and Technologies 2009
- 10:53, 14 June 2022 diff hist -13 8th IAC IAA Symposium on Stepping Stones to the Future: Strategies, Architectures, Concepts and Technologies 2010
- 10:52, 14 June 2022 diff hist -13 9th IAC IAA Symposium on Stepping Stones to the Future: Strategies, Architectures, Concepts and Technologies 2011
- 10:52, 14 June 2022 diff hist -9 10th IAC IAA Symposium on Building Blocks for Future Space Exploration and Development 2012
- 10:51, 14 June 2022 diff hist -9 11th IAC IAA Symposium on Building Blocks for Future Space Exploration and Development 2013
- 10:51, 14 June 2022 diff hist -9 12th IAC IAA Symposium on Building Blocks for Future Space Exploration and Development 2014
- 10:51, 14 June 2022 diff hist -9 13th IAC IAA Symposium on Building Blocks for Future Space Exploration and Development 2015
- 10:50, 14 June 2022 diff hist -9 14th IAC IAA Symposium on Building Blocks for Future Space Exploration and Development 2016
- 10:49, 14 June 2022 diff hist -9 15th IAC IAA Symposium on Building Blocks for Future Space Exploration and Development 2017
- 10:49, 14 June 2022 diff hist -9 16th IAC IAA Symposium on Building Blocks for Future Space Exploration and Development 2018
- 10:49, 14 June 2022 diff hist -9 17th IAC IAA Symposium on Building Blocks for Future Space Exploration and Development 2019
- 10:48, 14 June 2022 diff hist -9 18th IAC IAA Symposium on Building Blocks for Future Space Exploration and Development 2020
- 10:45, 14 June 2022 diff hist -9 19th IAC IAA Symposium on Building Blocks for Future Space Exploration and Development 2021
- 10:44, 14 June 2022 diff hist -9 20th IAC IAA Symposium on Building Blocks for Future Space Exploration and Development 2022
- 10:44, 14 June 2022 diff hist -13 IAC IAA Symposium on Building Blocks for Future Space Exploration and Development
- 10:36, 14 June 2022 diff hist -9 30th IAC IAA Symposium on Safety and Rescue 1997
- 10:36, 14 June 2022 diff hist -9 31st IAC IAA Symposium on Safety and Rescue and Quality 1998