Spigot started out being ran on a single thread over at Spoutcraft on the 29th June 2012.
By November, there were talks of something special being created. Later that month, on November 21st, the SpigotMC forums were born.
April 2013: The resource manager found its way into Spigot's community.
May 2013: 8% of all servers were using Spigot and 28% of the Minecraft population played on a Spigot server.
June 15th, 2013: brajo was appointed as the project lead for the new wiki.
23,000 servers were now using Spigot within a few short months for the Spigot team.
September 9th, 2013: The resource manager was organized into different resource sections to better classify resources.
October 1st, 2013: Spigot and Intreppid announced plans to attend MineCon together! In order to raise funds to attend, SpigotMC began accepting donations, and many server owners began contributing to the project. It was successful due to the amazing support by the community's donations!
December 2013: SpigotMC starts their own IRC Network to allow better communication with others.
March 4th, 2014: Spigot invested in a new forum design from renowned design firm Audentio Designs.
April 15th, 2014: Spigot introduced the Premium Resources section, allowing developers to sell their work for the first time ever to an open market.
June 10th, 2014: Due to the large amount of work the wiki required the wiki team lead, SpigotMC began recruiting new wiki team members.
September 3rd, 2014: Spigot received a DMCA takedown notice from a former Bukkit developer, and after considerable legal consultation, the downloads and source code were removed from the public domain. This is still an ongoing issue.
September 8th, 2014: After the DMCA takedown, md_5 announced a new way to continue releasing Spigot updates to the community through binary patches. By using a special Spigot Patcher JAR, users can apply updates to Spigot #1649 by using the special patcher tool. The Spigot development team proved their commitment to the project and that they were not going to give up because of a single developer.
October 18th, 2014: md_5 announced that Spigot was planning to update to Minecraft 1.8 despite all of the trials and tribulations faced by the team. md_5 and Thinkofdeath had already done a significant amount of work to bring Spigot up to date in private, and together, they are working on bringing full 1.8 compatibility before 2015. Once again, the Spigot development team proved that they are truly committed to the community by continuing to work on Spigot despite all of the issues that had arisen previous to this.
SpigotMC has an ever-growing amount of support from the community with over 65,000 members, and things are looking up despite all of the Minecraft community drama (including Microsoft acquiring ownership of Mojang AB).
More content to be added soon! Please leave discussion in the thread for this wiki post.