Past Events

The beautiful city of Buenos Aires hosted the first Ethereum World's Fair from November 17 to 22, 2025. Over 14,000 attendees from 130+ countries gathered at the iconic La Rural in Palermo for a touch and feel experience on Ethereum. The first Ethereum World's Fair brought over 80 exhibiting teams across eight dedicated districts for DeFi, Privacy, L2s, Decentralized Social, Hardware & Wallets, AI, Gaming, and Art.

With 12,500 attendees, the numbers have doubled since the previous Devcon two years ago. 60% of Devcon SEA's attendees experienced their first-ever Devcon, and participants represented 135 countries, making this the most global and diverse Devcon to date. The involvement of the Ethereum community was stronger than ever before, with 17 Community Hubs, 70 Impact Spaces, 19 accepted DIPs, 6 Community-Led Sessions, and 300+ hours of content in total.

The vibrant metropolis of Istanbul hosted Devconnect from November 13-19, 2023. Over 3500 Ethereum enthusiasts gathered at the Devconnect Cowork in the Istanbul Congress Center, while many more attended independent events throughout Istanbul. Each event offered key insights into their respective areas and highlighted crucial topics for progress within the Ethereum ecosystem. Trending topics varied from L2s and programmable cryptography to world-building, infrastructure, global impact, Ethereum's core values, and real-world use cases.

After a three-year-long pause, we emerged from the pandemic stronger than before and reunited in Bogotá for the largest and some would say, “best Devcon yet.” One of its most powerful aspects was the impact on the regional community and the involvement of the flourishing Latin American Ethereum community, which had organized 14 community events around the region leading up to Devcon.

The inaugural Devconnect took place in Amsterdam in April 2022, introducing a new format for Ethereum gatherings. Rather than a single conference, Devconnect featured a week of independent events hosted by various teams across the ecosystem, each diving deep into specific topics like MEV, Layer 2s, ETH staking, and more. The event established the Devconnect format of decentralized, community-organized gatherings.

Devcon 5 brought the Ethereum ecosystem together in Japan in October of 2019 for an event that featured more content and attendees than ever before. In addition to the conference talks, Devcon featured the event's first community run outdoor stage and experiential Park area, a powerful open from the City of Osaka, a celebrity appearance by the world’s most well-known dog, Kabosu (the original “Doge”) and so much more.

Devcon 4 brought Ethereum's ecosystem and family back to Europe with a 2018 event at the Prague Convention Center in the Czech Republic (Czechia). With 3,000 strong in attendance, Devcon was filled with talks, experiences, teams from a matured application ecosystem, and more enterprise support than ever before.

Devcon 3 was a celebration held around "Dio de Los Muertos" and Halloween in Cancun, Mexico in November of 2017. It was the largest ever Ethereum gathering at the time, with just under 2000 attending in a year of unprecedented growth in terms of network use, adoption and progress.

Devcon 2 came alongside one of the most (in)famous moments in Ethereum's early history, as a set of Denial of Service attacks were launched against the network just hours before the event was set to begin. With many of the most formidable builders in the ecosystem gathered together in Shanghai, they helped to coordinate emergency upgrades backstage to restore full functionality to the network, moments before stepping forward to speak to the future of the network on stage.

Only a few months after Ethereum came to life, DΞVCON 1 was held in London in November of 2015. Presenters remained hard at work on each piece of the original Ethereum roadmap, early dApp teams took the stage, and supporters teased the early industry adoption that was to arrive soon.