Miercurea Ciuc

Sister cities

• Bălți
• Riehen
• Heves
• Budakeszi
• La Zubia
• Budapest District III
• Bečej
• Tiszaújváros
• Makó
• Budapest district XIV
• Cegléd
• Gyula

History

The remains of three Dacian fortifications were found in the Jigodin neighbourhood of Miercurea Ciuc; they belong to the Dacian culture of the 1st century. In the Middle Ages it was the capital of Csíkszék (Csik seat). Between 1876 and 1918, Csíkszereda was the seat of Csík County of the historical Szeklerland in the Kingdom of Hungary. After the Treaty of Trianon in 1920, it became part of Kingdom of Romania, and was the seat of Ciuc County between 1927 and 1938. Miercurea Ciuc became part of Hungary again between 1940 and 1944 as a result of the Second Vienna Award. In September 1944, the Romanian Army and the Soviet Red Army captured the town. It was returned to Romania in March 1945, a move confirmed by the Paris Peace Treaties of 1947. Between 1952 and 1960, the town was part of the Magyar Autonomous Region, later named the Mureș-Magyar Autonomous Region between 1960 and 1968. In 1968, Miercurea Ciuc became the county seat of Harghita County. In the post-World War II period, the town was industrialized; among other projects, a tractor factory, a textile factory and, in the 1960s, a beer factory were built here. The factory is now owned by Heineken. The Ciuc Beer products have gained an increasing popularity in Romania.

Most-observed species

• Annual Fleabane

  Erigeron annuus (L.) Pers. · Magnoliopsida
  144
• Pineapple Weed

  Matricaria discoidea DC. · Magnoliopsida
  100
• Common Chaffinch

  Fringilla coelebs Linnaeus, 1758 · Aves
  92
• Coal Tit

  Periparus ater (Linnaeus, 1758) · Aves
  80
• False-acacia

  Robinia pseudoacacia L. · Magnoliopsida
  74
• Red Crossbill

  Loxia curvirostra Linnaeus, 1758 · Aves
  70
• Horse-radish

  Armoracia rusticana P.Gaertn., B.Mey. & Scherb. · Magnoliopsida
  64
• White Stork

  Ciconia ciconia (Linnaeus, 1758) · Aves
  62

Most recent

• M 4.4 — 2026-08-25
  13 km SSE of Comandău, Romania
• M 4.6 — 2026-08-11
  9 km ESE of Vama Buzăului, Romania
• M 4.5 — 2026-02-26
  1 km SSW of Paltin, Romania
• M 4.2 — 2025-10-25
  12 km W of Nereju Mic, Romania
• M 4.1 — 2025-05-16
  13 km NNW of Gura Teghii, Romania
• M 4.2 — 2025-05-11
  11 km N of Gura Teghii, Romania