The Evolution of Terra Stablecoins: From KRT to USTC
The Terra blockchain has undergone one of the most dramatic journeys in the history of decentralized finance. What started as an ambitious experiment in algorithmic stablecoins evolved into a global case study in both innovation and risk. Below is a timeline outlining the evolution of Terra’s stablecoins — from TerraKRW to TerraClassicUSD (USTC).
1. 2019 — The First Stablecoin: TerraKRW (KRT)
On April 23, 2019, the Terra mainnet was launched, marking the debut of its first algorithmic stablecoin, TerraKRW (KRT), which was pegged to the South Korean Won (₩). It was used in the CHAI payments app in South Korea for real-world transactions.
The mechanism ensured that 1 KRT equaled 1 KRW by burning or minting LUNA to maintain stability.
2. 2020 — Expansion to Multi-Fiat Stablecoins
In 2020, Terra expanded its ecosystem with multiple fiat-pegged stablecoins, including:
- TerraUSD (UST) — pegged to the US Dollar
- TerraMNT — pegged to the Mongolian Tögrög
- TerraSDR — pegged to the IMF’s Special Drawing Rights basket
3. September 12, 2020 — Launch of TerraUSD (UST)
TerraUSD (UST) became the flagship algorithmic stablecoin of the Terra ecosystem. Unlike fiat-backed stablecoins, UST was supported only by an arbitrage mechanism with LUNA. It played a central role in powering major DeFi protocols on Terra, including Anchor, Mirror, and Astroport.
4. 2021 — UST Becomes Dominant
By the end of 2021, UST had overtaken all other Terra stablecoins, including KRT, in both trading volume and adoption. The Anchor Protocol’s high APY rates of 19–20% drove massive UST minting, helping its market capitalization soar to $18 billion by April 2022. Meanwhile, other Terra stablecoins became largely inactive.
5. May 7–13, 2022 — UST Depeg and Collapse
On May 7, 2022, UST slightly lost its peg, dropping from $0.99 to $0.985. Over the next few days, a catastrophic death spiral occurred:
- UST fell below $0.10
- LUNA’s supply hyperinflated to 6.5 trillion
The algorithmic balance mechanism that linked UST and LUNA collapsed under market pressure, leading to one of the largest failures in cryptocurrency history.
6. May 28, 2022 — Rebrand to TerraClassicUSD (USTC)
Following the collapse, Terraform Labs launched Terra 2.0. The original Terra chain was rebranded as Terra Classic. UST was renamed TerraClassicUSD (USTC), and LUNA was renamed LUNC (Terra Classic). Terra 2.0 launched without any algorithmic stablecoin, marking a new chapter for the ecosystem.
The evolution of Terra stablecoins remains a defining story in blockchain history — a powerful reminder of both the potential and the risks of algorithmic finance.
