To submit updates, please PM me or post in the PG History & Milestone discussion thread.
Participants (with credit)
2005 June - 50
2005 July - 100
2005 October - 500
2005 December - 1000
2006 July - 2000
2007 May - 5000
2007 December - 10,000
2008 July - 15,000
2009 January - 20,000
2009 July - 25,000
2010 February 1 - 30,000
2005 July - 100,000 cobblestones
2005 August - 200,000 cobblestones
2005 September - 500,000 cobblestones
2005 October - 1,000,000 cobblestones
2005 November - 2,000,000 cobblestones
2005 December - 5,000,000 cobblestones
2006 May - 10,000,000 cobblestones
2006 November - 20,000,000 cobblestones
2007 July - 50,000,000 cobblestones
2007 December - 100,000,000 cobblestones
2008 May - 200,000,000 cobblestones
2008 October - 400,000,000 cobblestones
2008 December - 500,000,000 cobblestones
2009 March - 750,000,000 cobblestones
2009 May - 1,000,000,000 cobblestones
2009 July - 1,250,000,000 cobblestones
2009 October - 1,500,000,000 cobblestones
2009 December 23 - 2,000,000,000 cobblestones
2010 March 09 - 2,500,000,000 cobblestones
2010 May 12 - 3,000,000,000 cobblestones
The following will eventually be consolidated into the timeline at PG History.
- June 12 – Message@Home goes live with the Message7 application by opening account creation to 50 users
- August - the RSA 640 Factoring Challenge application is added and the Message7 application is discontinued
- September 01 - Message@Home changes name to PrimeGrid
- November - the RSA 768 Factoring Challenge application is added and the RSA 640 Factoring Challenge application is discontinued
- March - the primegen application is added and the RSA 768 Factoring Challenge application is discontinued
- November 26 – Collaboration established with Twin Prime Search. TPS LLR application is added
- January 15 - Eric Vautier of France finds a record twin prime through the manual TPS effort (2003663613*2^195000-1 and 2003663613*2^195000+1)
- May 14 - PrimeGrid achieves the top project ranking by prime count in the Top 5000 list at The Prime Pages (shared with TPS).
- June 08 - Due to project credit adjustments at the Prime Pages, PrimeGrid relinquishes the top project ranking by prime count. Projects now share credit.
- June 20 - PrimeGrid regains the top project ranking by prime count in the Top 5000 list at The Prime Pages (shared with TPS).
- July - Woodall LLR application is added
- August - Cullen LLR application is added
- August 04 - Lasse Mejling Andersen of Denmark finds a record Woodall Prime (2013992*2^2013992-1)
- August 13 - Stephen Kohlman of Canada finds a record Woodall Prime (2367906*2^2367906-1)
- September 15 – Combined Cullen/Woodall sieve application is added
- October 13 – PSP sieve application is added
- November 02 - PrimeGrid relinquishes the top project ranking by prime count.
- November 18 – Collaboration established with 321search. 321 LLR application is added
- December 11 – PSP LLR application is added
- December 21 - Matthew J. Thompson of the United States finds a record Woodall Mega Prime (3752948*2^3752948-1)
- February 29 - Collaboration established with Proth Search
- March 15 - Challenge Series established. Single day credit record established with over 820K cobblestones
- March 23 – Dylan Bennett of Canada finds a 321 Mega Prime (3*2^4235414-1)
- April 13 – Project Staging Area added to help facilitate new prime searches into BOINC production
- May 10 - the primegen application is archived
- July 20 - Single day credit record broken with over 3.4M cobblestones during the Lunar Landing Challenge (previously 820K cobblestones)
- August 28 - Meebo chat room added to forum
- October 27 - PrimeGrid server is updated
- December - Single day credit record broken with over 5.2M cobblestones during the Winter Solstice Challenge (previously 3.4M cobblestones)
- December 26 - AP26 search launched
- December 27 - Eric Ueda of the United States finds a Fermat Number divisor 651*2^476632+1 Divides F(476624)
- February 13 - PrimeGrid partners with 12121 Search to search for primes of the form 121*2^n-1 and 27*2^n-1. PrimeGrid added the +1 form and will search all four forms in the 27121 Search.
- March 06 - Senji Yamashita of Japan finds a Fermat Number divisor 519*2^567235+1 Divides F(567233)
- March 31 - Eric Embling of the United States finds a Fermat Number divisor 659*2^617815+1 Divides F(617813)
- April 03 - Andy Brady of the United States finds a 321 Mega Prime (3*2^5082306+1)
- April 20 - Dennis R. Gesker of the United States finds a Cullen Mega Prime (6328548*2^6328548+1)
- May 01 - Single day credit record broken with over 7.7M cobblestones during the Showers to Flowers Challenge (previously 5.2M cobblestones)
- May 11 - First Mac application released - AP26
- May 12 - Factorial Prime Search launched
- May 17 - PS3 support added to AP26 application
- May 26 - Mac support added for sr2sieve
- June 24 - Solaris support added to AP26 application
- July - Prime Sierpinski Problem/Seventeen or Bust sieve passes 50P in sieving depth!!!
- July 04 - AP26 application receives a series of optimizations for Intel 64bit Linux.
- July 18 Twitter application announcing AP26 updates released
- July 25 - Anonymous of Japan finds record Cullen Mega Prime (6679881*2^6679881+1)
- July 25 - SunGard Availability Services of the United States finds record Twin Primes (65516468355*2^333333±1)
- August 03 - Badges added to PrimeGrid
- August 07 - SETI.Germany becomes the first team to reach 100M cobblestones
- August 09 - SG Grid becomes the first user to reach 50M cobblestones
- August 13 - Mac support added for gcwsieve
- August 16 - Mac support added for LLR
- August 16 - Sophie Germain Prime Search launched
- August 27 - PrimeGrid regains the top project ranking by prime count in the Top 5000 list at The Prime Pages.
- September - Proth Prime Search passes 1P in sieving depth. A most incredible accomplishment for 4<k<1200; n<5M.
- September 04 - Facebook application created for all BOINC projects.
- September 16 - PrimeGrid joins Seventeen or Bust in their search for a solution to the Sierpinski problem. PrimeGrid had already been sieving a combined PSP/SoB sieve file. NOTE: Will await for updated LLR before launching.
- October 10 - AP26 application receives a series of optimizations for Intel 32bit & 64bit Windows
- October 20 - ppsieve is released for the PPSE sieve which advances the processing rate 6 times faster.
- November 05 - Generalized Fermat Prime Search launched
- November 09 - gcwsieve ported to native BOINC for Windows 64bit.
- November 08 - Hope appears for the possibility of a GPU application at PrimeGrid. Development and testing begins.
- November 14 - Single day credit record broken with over 9.5M cobblestones during the Giving Thanks Challenge (previously 7.7M cobblestones)
- December - CUDA support added to AP26 application
- December 07 - Lennart Vogel of Sweden finds a record Generalized Woodall Prime (563528*13^563528-1)
- December 14 - PrimeGrid relinquishes top project ranking by prime count in the Top 5000 list at The Prime Pages.
- December 20 - Single day credit record broken with over 15.9M cobblestones during the Winter Solstice Challenge (previously 9.5M cobblestones)
- January - CUDA for Mac support added to AP26 application. ATI GPU application in testing.
- February 01 - Collaboration with Seventeen or Bust officially begins to help solve the Sierpinski problem
- March 07 - The Riesel problem is resumed with TRP (Sieve)
- March 09 - Proth Prime Sieve Cuda testing begins
- March 19 - extended Sierpinski problem launched
- March 21 - The Riesel Problem (LLR) launched
- April 04 - SETI.Germany becomes the first team to reach 200M cobblestones
- April 12 - Benoãt Perichon of France finds a World Record AP26: 43142746595714191+23681770*23#*n for n=0..25
- April 24 -David Mumper of the United States finds a 321 Mega Prime: (3*2^6090515-1)
- May 11 - News forum added to Message Boards
- May 20 - gcwsieve ported to native BOINC for Windows 32bit
- June 10 - shanky123 becomes the first user to reach 100M cobblestones
- June 18 - Single day credit record broken with over 19.6M cobblestones during the Summer Solstice Challenge (previously 15.9M cobblestones)
-more info to come