Julian, a lawyer, helped set up Viaweb properly in exchange for $10k and 10% ownership. His calmness in crisis situations was crucial for the company's success.

Y Combinator was officially created on March 1, 2005.

Y Combinator held another session of Startup School in January 2006.

In June 2006, Y Combinator launched its Summer 2006 batch with 11 graduating companies, which included Xobni, Scribd, and OMGPOP.

An article in BusinessWeek featuring Paul Graham, one of the co-founders of Y Combinator, highlighting his role and impact in the startup ecosystem.

In January 2009, the Winter 2009 batch of Y Combinator class was launched, with 16 companies graduating, including Airbnb.

In March 2009, Y Combinator raised approximately US$2 million from Sequoia Capital and a group of angel investors, marking a shift from being solely funded by its founders.

In July 2009, Paul Graham, co-founder of Y Combinator, shared valuable advice for startups on how to apply to the program, outlining what YC looks for in applications.

On February 1, 2010, BoomStartup, a Utah-based accelerator, was established and quickly gained recognition as one of Y Combinator's main competitors.

On September 1st, 2010, Reddit Cofounder Alexis Ohanian announced his decision to join Y Combinator, a renowned startup accelerator program.

Y Combinator, a prominent startup accelerator, introduced Paul Buchheit and Harj Taggar as its new partners. This strategic decision aims to enhance the leadership and mentorship within the organization.

Garry Tan became a partner at Y Combinator, a prestigious startup accelerator known for nurturing tech startups. His role was crucial in shaping the startup ecosystem.

Garry Tan was welcomed at Y Combinator, indicating his involvement in the renowned startup accelerator. His presence was anticipated to bring valuable insights and expertise.

Y Combinator celebrated its 7th birthday on March 11, 2012. The founders were too busy to notice it on the exact day as usual.

Paul Graham shared the story of how Y Combinator started.

In February 2014, Paul Graham publicly endorsed Sam Altman for a leadership position, reflecting the influence and support within the Y Combinator startup accelerator community.

Paul Graham steps aside from Y Combinator and transfers control of Hacker News to someone else.

Former YC Partner Harj Taggar is involved in building a new technical hiring pipeline with TripleByte, aiming to revolutionize the hiring process in the tech industry.

Y Combinator launches a new program with the goal of accommodating up to 1,000 companies annually, expanding its reach and impact in the startup ecosystem.

Leena Rao joined Y Combinator as the new Chief Operating Officer in August 2015.

Y Combinator announced the launch of its own in-house moonshot group in October 2015.

Sam Altman announced YC Continuity on October 15, 2015, as a part of Y Combinator's initiatives.

In October 2015, Michael Seibel shared his top ten pieces of advice on Twitter for startups getting ready for a Y Combinator interview.

Y Combinator introduces the second version of its Fellowship program, aimed at supporting and nurturing early-stage startups.

On August 11, 2016, Y Combinator announced a funding program where YC partners would be traveling to 11 countries during the fall to engage with founders and understand how they can support international startup communities. The countries included Nigeria, Denmark, Portugal, Sweden, Germany, Russia, Argentina, Chile, Mexico, Israel, and India.

On September 20, 2016, the online publishing platform Medium shared a post by Aditya Agarwalla offering advice titled 'Y Combinator Application Advice for International Companies'. The post aimed to provide a concise set of tips for international firms applying to Y Combinator.

Y Combinator updates its Request for Startups (RFS) to include enterprises focusing on improvements in food and farming, mass media technology, and technologies for underserved communities and social services.

On September 19, 2017, 1,584 companies completed Y Combinator's online Startup School Founders Track program, out of 2,820 startups accepted from 13,321 applicants for YC's 10-week mentorship program.

On March 6, 2018, Y Combinator released an updated Request for Startups, introducing 9 new categories including Carbon Removal Technologies, Cellular Agriculture, and Safeguards Against Fake Video.

Y Combinator's collaboration with Qi Lu for the YC China program, aiming to support and nurture startups in the Chinese market.

Sam Altman decided to step down from his position as the president of Y Combinator to focus on OpenAI.

On March 11, 2019, a venture capital powerhouse became the latest Silicon Valley firm to establish an office in San Francisco.

YC China announces the commencement of applications for their inaugural batch of Startup School, designed specifically for the Chinese market and scheduled for fall 2019 in Beijing.

Y Combinator reveals Geoff Ralston as the new President, with Sam Altman transitioning to Chairman to focus more on Open AI.

Y Combinator, a renowned startup accelerator, revealed the addition of Paul Buchheit and Harj Taggar as new partners. This move is expected to bring fresh perspectives and expertise to the organization.

Y Combinator has announced changes in its investment approach.

Paul Buchheit, the creator of Gmail, left Facebook to join Y Combinator.

A blog post by Jessica Livingston discussing insights gained from 40 female founders who are part of Y Combinator.

Y Combinator closed a new fund of $8.25 million.

Y Combinator recruited its first black partner in an effort to increase diversity and inclusion.

Sam Altman shares updates about changes happening at Y Combinator, indicating potential shifts in the organization's strategies or operations.

A blog post on blog.ycombinator.com discussing the types of startups Y Combinator is looking for, including those related to news, jobs, and democracy.

Sam Altman announces his resignation as the president of Y Combinator amidst a series of changes happening at the accelerator.

TechCrunch reported that the ACLU has joined Y Combinator's startup school. This partnership signifies the involvement of a prominent organization in the startup ecosystem.

Y Combinator has integrated Imagine K12, an edtech accelerator, into its operations, creating a specialized vertical focused on educational technology. This move consolidates resources and expertise to drive advancements in the edtech industry.

The summer 2020 S20 Remote Batch was conducted remotely via videotelephony due to the COVID-19 pandemic.

Sam Altman steps down as the president of Y Combinator, a renowned startup accelerator, marking a significant change in the organization's leadership.

Y Combinator's initial batch produced successful startups like Reddit. This event explores the current status of the first founders of Y Combinator.

Search trends for Y Combinator, Techstars, 500 Startups, Venture Catalysts, and Startupbootcamp were retrieved on April 17, 2021 from Google Trends.

Information related to Y Combinator was accessed on April 22, 2021 from books.google.com.

On May 14, 2021, Y Combinator raised $3.4 million in a Seed round for Alba Orbital and $500,000 in a Pre-Seed round for Atomize on May 12, 2021.

Y Combinator updates its Requests for Startups with a new addition titled Government 2.0. This initiative aims to fund enterprises that address crucial issues not well tackled by the United States Government, such as access to education, healthcare, affordable housing, and accurate information.

By late 2023, Y Combinator had invested in over 4,000 companies with a majority being for-profit, reaching a combined valuation of $600 billion.

In 2024, Garry Tan aims to raise $2 billion in new capital for Y Combinator.