Miguel Costa
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Miguel Costa
@mncgmxpt.bsky.social
220 followers 80 following 400 posts
Research and study of History and Cultural Heritage.
Numismatist. Author of the descriptive study on the coinage of Portuguese 400 Reis silver coins.
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#numismatics #ancientcoins #romancoins #ibero-romancoins
#coin-enthusiasts #coins
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mncgmxpt.bsky.social
How Fake Coins Kept the Roman Empire’s Economy Alive in Its Decline.

www.labrujulaverde.com/en/2025/07/h...

#ancientbluesky #archaeology #ancienthistory #romanarchaeology #roman #numismatics #ancientcoins #coin-enthusiasts #coins #romancoins #culturalheritage #museums #romanempire
How Fake Coins Kept the Roman Empire’s Economy Alive in Its Decline
A recent study published in the journal Vegueta reveals how counterfeit coins were key to sustaining the economy in the final centuries of the Roman Empire. The research, focused on the territorium ge...
www.labrujulaverde.com
July 12, 2025 at 1:18 PM
mncgmxpt.bsky.social
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Sestertius - RIC III Marcus Aurelius 836
Date 161 - 162 AD ; Mint: Rome

#numismatics #ancientcoins #romancoins #coin-enthusiasts #coins #romanarchaeology #roman #romanempire #ancientbluesky
May 30, 2025 at 2:34 PM
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Sestertius - RIC IV Caracalla 512A
Date 210 - 213 AD ; Mint: Rome

#numismatics #ancientcoins #romancoins #coin-enthusiasts #coins #romanarchaeology #roman #romanempire #ancientbluesky
May 29, 2025 at 1:34 PM
mncgmxpt.bsky.social
Roman coin hoard discovered by Romanian metal detectorist is among the country’s largest.

archaeologymag.com/2025/05/roma...

#ancientbluesky #archaeology #ancienthistory #romanarchaeology #roman #numismatics #ancientcoins #coin-enthusiasts #coins #romancoins #culturalheritage #museums #romanempire
Roman coin hoard discovered by Romanian metal detectorist is among the country’s largest
A Romanian metal detectorist uncovers 1,469 ancient Roman silver coins near Bucharest—one of the largest hoards ever found in Romania.
archaeologymag.com
May 14, 2025 at 3:30 PM
mncgmxpt.bsky.social
2,200-year-old mysterious pyramid structure filled with coins and weapons found near Dead Sea.

The purpose of a mysterious pyramidal structure in the Judaean Desert is unknown, but excavators are finding many well-preserved artifacts there.

www.livescience.com/archaeology/...
Mysterious pyramid structure found in Judaean Desert
The purpose of a mysterious pyramidal structure in the Judaean Desert is unknown, but excavators are finding many well-preserved artifacts there.
www.livescience.com
March 30, 2025 at 7:45 AM
mncgmxpt.bsky.social
Marcus Antonius: The Loser Who Did Not Write History.

new.coinsweekly.com/article-of-t...

#ancientbluesky #archaeology #ancienthistory #romanarchaeology #roman #numismatics #ancientcoins #coin-enthusiasts #coins #romancoins #culturalheritage #museums #romanempire
Marcus Antonius: The Loser Who Did Not Write History - CoinsWeekly %
Künker’s auction 419 features numismatic rarities from the Roman civil war that followed Caesar’s death. In addition to the Eid Mar denarius, aurei of Marcus Antonius will cross the auction block. We ...
new.coinsweekly.com
February 13, 2025 at 3:56 PM
mncgmxpt.bsky.social
Rare Roman and British coin hoard discovered in Netherlands.

archaeologymag.com/2025/02/roma...

#ancientbluesky #archaeology #ancienthistory #romanarchaeology #roman #numismatics #ancientcoins #coin-enthusiasts #coins #romancoins #culturalheritage #museums #romanempire #metaldetecting
Rare Roman and British coin hoard discovered in Netherlands
Two metal detectorists unearthed an outstanding hoard of 404 Roman and British gold and silver coins in the Dutch municipality of Bunnik
archaeologymag.com
February 3, 2025 at 5:15 PM
mncgmxpt.bsky.social
1/5
Denomination: Escudo de São Tomé, (1000 Reais)
Mint: Lisbon
Authorit: King João III of Portugal, (1521 - 1557)

#numismatics #coin-enthusiasts #coins #rarecoins #culturalheritage
February 2, 2025 at 6:45 PM
mncgmxpt.bsky.social
Ibero-Roman Coins
Denomination: As
Mint: SALDUIE - CAESARAUGUSTA, today is the city of Zaragoza, Spain
Dating: time of Gaius/Caligula (37AD-41AD)
Portrait: Agrippa

#numismatics #ancientcoins #romancoins #ibero-romancoins #coin-enthusiasts #coins #romanarchaeology #roman #romanempire #ancientbluesky
January 31, 2025 at 6:48 PM
mncgmxpt.bsky.social
What the Second Trump Administration Might Mean for Collectors.

new.coinsweekly.com/news-en/what...

#numismatics #ancientcoins #romancoins #coin-enthusiasts
#coins #romanarchaeology #roman #romanempire #ancientbluesky
What the Second Trump Administration Might Mean for Collectors - CoinsWeekly %
What does Donald Trump's return to the White House mean for collectors in the USA? Will the new Administration help “Make Collecting Great Again” or will it be anti-collecting business as usual at the...
new.coinsweekly.com
January 29, 2025 at 4:04 PM
mncgmxpt.bsky.social
Excavations at a new Roman site in Faro.

One of the biggest surprises was the discovery of part of a beautiful mosaic.

www.portugalresident.com/archaeology-...

#ancientbluesky #archaeology #ancienthistory #romanarchaeology #roman #romanempire #culturalheritage #museums #history
Archaeology: Excavations at a new Roman site in Faro
Archaeology: Excavations at a new Roman site in Faro. One of the biggest surprises was the discovery of part of a beautiful mosaic.
www.portugalresident.com
January 28, 2025 at 4:04 PM
mncgmxpt.bsky.social
Ibero-Roman Coins
Denomination: As
Mint: CAESAR AUGUSTA, today is the city of Zaragoza, (Spain)
Dating: time of Augustus (27 BC - 14 AD)

#numismatics #ancientcoins #romancoins #ibero-romancoins #coin-enthusiasts #coins #romanarchaeology #roman #ancientbluesky
January 27, 2025 at 5:13 PM
mncgmxpt.bsky.social
Ibero-Roman Coins
Denomination: Semis
Mint: IULIA TRADUCTA, today is the city of Algeciras, (Andalusia - Spain)
Dating: time of Augustus (27 BC - 14 AD)

#numismatics #ancientcoins #romancoins #ibero-romancoins #coin-enthusiasts #coins #romanarchaeology #roma #romanempire #ancientbluesky
January 24, 2025 at 6:35 PM
mncgmxpt.bsky.social
Roman strategy game pieces discovered in Hadrianopolis, Turkey.

archaeologymag.com/2025/01/roma...

#ancientbluesky #archaeology #ancienthistory #romanarchaeology #roman #romanempire #culturalheritage #museums #history
Roman strategy game pieces discovered in Hadrianopolis, Turkey
Excavations conducted in Hadrianopolis, in the Karabük region of Turkey, uncovered two game stones made of bone dating to the 5th century CE
archaeologymag.com
January 23, 2025 at 5:12 PM
mncgmxpt.bsky.social
IAPN Asks Collectors to Help Protect Roman Coin Collecting.

new.coinsweekly.com/news-en/iapn...

#numismatics #ancientcoins #romancoins #coin-enthusiasts
#coins #romanarchaeology #roman #romanempire #ancientbluesky
IAPN Asks Collectors to Help Protect Roman Coin Collecting - CoinsWeekly %
Will Roman coins in general be considered the cultural property of Italy by US Customs unless you can provide extensive proof of ownership? Such concerns are raised by the proposed extension of a Memo...
new.coinsweekly.com
January 23, 2025 at 4:31 PM
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Votive artifact from the Chalcolithic period (3rd millennium BC), from the prehistoric settlement of Olelas, Almargem do Bispo, Sintra, (Portugal). ...

#ancientbluesky #archaeology #prehistory #ancienthistory #history #historyfiles #preroman #ancienteurope #museums #culturalheritage
January 23, 2025 at 4:10 PM
mncgmxpt.bsky.social
New structures from Lisbon's Roman Theatre discovered at a depth of 30 centimeters.

www.nit.pt/fora-de-casa...

#ancientbluesky #archaeology #ancienthistory #romanarchaeology #roman #romanempire #culturalheritage #museums #history
Descobertas novas estruturas do Teatro Romano de Lisboa a 30 centímetros de profundidade
Durante as escavações realizadas em dezembro de 2024, foram desvendadas construções em excelentes condições de conservação.
www.nit.pt
January 22, 2025 at 4:27 PM
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Denomination: Engenhoso, (500 Reais)
Mint: Lisbon
Authorit: King Sebastião I of Portugal, (1557 - 1578)

#coins #numismatics #coin-enthusiasts #coins #rarecoins #culturalheritage
January 22, 2025 at 3:57 PM
mncgmxpt.bsky.social
Pompeii excavation reveals spectacular 2,000-year-old private thermal spa and bathhouse.

archaeologymag.com/2025/01/priv...

#ancientbluesky #archaeology #ancienthistory #romanarchaeology #roman #romanempire #culturalheritage #museums #history
Pompeii excavation reveals spectacular 2,000-year-old private thermal spa and bathhouse
Archaeologists have unearthed one of the largest, best-preserved private thermal bath complexes ever found in Pompeii.
archaeologymag.com
January 19, 2025 at 7:28 PM
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Aureus - RIC I (second edition) Tiberius 29
Date 14 AD - 37 AD ; Mint: Lugdunum

#numismatics #ancientcoins #romancoins #coin-enthusiasts #coins #romanarchaeology #roman #romanempire #ancientbluesky
January 18, 2025 at 6:14 PM
mncgmxpt.bsky.social
Ibero-Roman Coins
Denomination: As
Mint: GRACCURRIS, today is the town of Alfaro, (La Rioga - Spain)
Dating: time of Tiberius (14 AD - 36 AD)

#numismatics #ancientcoins #romancoins #ibero-romancoins
#coin-enthusiasts #coins #romanarchaeology #roman #romanempire #ancientbluesky
January 17, 2025 at 6:06 PM
mncgmxpt.bsky.social
Excavations in Gloucestershire uncover Roman roadside settlement.

archaeologymag.com/2025/01/roma...

#ancientbluesky #archaeology #ancienthistory #romanarchaeology #roman #romanempire #culturalheritage #museums #history
Excavations in Gloucestershire uncover Roman roadside settlement
A Roman roadside settlement uncovered in Gloucestershire during the A417 project reveals life nearly 2,000 years ago,
archaeologymag.com
January 16, 2025 at 1:10 PM
mncgmxpt.bsky.social
1,700-year-old hoard of Roman gold coins discovered in Luxembourg.

archaeologymag.com/2025/01/roma...

#ancientbluesky #archaeology #ancienthistory #romanarchaeology #roman #numismatics #ancientcoins #coin-enthusiasts #coins #romancoins #culturalheritage #museums #romanempire
1,700-year-old hoard of Roman gold coins discovered in Luxembourg
An extraordinary treasure of 141 Roman gold coins, or solidi, of the late 4th century CE has been unearthed by archaeologists from Luxembourg
archaeologymag.com
January 14, 2025 at 12:41 PM
mncgmxpt.bsky.social
Ibero-Roman Coins
Denomination: Dupondius
Mint: SALDUIE - CAESARAUGUSTA, today is the city of Zaragoza, (Spain)
Dating: 31 AD - 32 AD, (time of Tiberius)

#numismatics #ancientcoins #romancoins #ibero-romancoins #coin-enthusiasts #coins #romanarchaeology #roman
#romanempire #ancientbluesky
January 13, 2025 at 6:08 PM
mncgmxpt.bsky.social
Turkish farmer discovers massive 1,700-year-old Roman mosaic.

archaeologymag.com/2025/01/turk...

#ancientbluesky #archaeology #ancienthistory #romanarchaeology #roman #romanempire #culturalheritage #museums #history
Turkish farmer discovers massive 1,700-year-old Roman mosaic
A preserved 84-square-meter Roman mosaic was unearthed near the village of Salkaya in Elazığ Province, eastern Turkey, by a local farmer
archaeologymag.com
January 12, 2025 at 3:53 PM