ARBArbitrum: history, founders and key events
From Mar 23, 2023 to today, every major rally, crash and upgrade, each with a dated, sourced price.
Open the interactive timelineLatest close in our data: $0.185 (Coinbase Exchange ARB/USD daily close, 2026-10-14).
Origin story
Arbitrum is an Ethereum layer 2 network built by Offchain Labs, founded by Princeton computer scientist Ed Felten with Steven Goldfeder and Harry Kalodner. It runs transactions off chain and posts data to Ethereum, using fraud proofs for security.
Arbitrum One opened in 2021 and the ARB governance token was airdropped on March 23, 2023.
Founders: Ed Felten, Steven Goldfeder and Harry Kalodner of Offchain Labs.
Source: Coinbase Exchange ARB/USD daily closes 2023-03-23 to 2026-10-14. Fetched Oct 14, 2026 from free public APIs. Click a dot for the event and its price on that day.
Browse by year
Key events
- Aug 31, 2021launch
Arbitrum One opens
Arbitrum's mainnet opens to all users. - Mar 23, 2023launch
ARB airdrop $1.33 (Coinbase Exchange ARB/USD daily close, 2023-03-23)
Arbitrum launches its governance token. - Mar 23, 2023milestone
First daily close in our data $1.33 (Coinbase Exchange ARB/USD daily close, 2023-03-23)
Our sourced ARB price history begins on this day. - Jan 11, 2024rally
Highest close in our data $2.26 (Coinbase Exchange ARB/USD daily close, 2024-01-11)
The highest daily close for ARB in our price history. - Aug 15, 2026crash
Lowest close after the peak $0.07246 (Coinbase Exchange ARB/USD daily close, 2026-08-15)
The lowest ARB close in our data after its highest close.
Updated
Sources
Facts written in our own words. Last checked Oct 14, 2026.