| Regions Used / Users | Still Used? | Invented | Date Jan. 1, 2000 AD converted (unless marked otherwise) | Answer | % Correct |
|---|---|---|---|---|---|
| Armenia | Yes | Medieval | Միհր արաց ԹՎ ՌՆԽԹ | Armenian | 93%
|
| China | Yes | 510 AD | 丙子年 戊午月 己卯日 | Chinese | 93%
|
| Bengal | Yes | Medieval | ১৭ পৌষ ১৪০৬ বঙ্গাব্দ | Bengali | 79%
|
| Egypt | No | Bronze Age | ![]() | Egyptian | 79%
|
| Ethiopia, Eritrea | Yes | 100 AD | 22 ታኅሣሥ 1992 A.M | Ge'ez | 79%
|
| Japan | Yes | 1873 AD | 皇紀2660年1月1日 | Imperial Japanese | 79%
|
| Japan | Yes | 701 AD | 平成12年1月1日 | Japanese | 79%
|
| Egypt | Yes | 100 AD | 22 Ⲭⲟⲓⲁⲕ 1716 A.M / 22 Ⲕⲟⲓⲁϩⲕ 1716 AM | Coptic | 71%
|
| Israel | Yes | 3761 BC | 23 טֵבֵת 5760 | Hebrew | 71%
|
| Islamic World | Yes | 632 AD | 24/9/1420 24 رَمَضَان⠀1420 H | Hijri | 71%
|
| Kurdistan | Yes | 612 BC | 2611 بەفران 11 | Kurdish | 71%
|
| Iceland | No | 900s AD | 16 Mörsugur, árið 1000 | Old Icelandic | 71%
|
| Roman Empire, Worldwide | Yes | 45 BC | 2451545 or 19/12/1999 | Julian | 64%
|
| Nepal | Yes | 800s AD | ![]() | Nepal Sambat | 64%
|
| Myanmar | Yes | 640 AD | ၁၃၆၁ ခုနှစ်၊ နတ်တော်လဆုတ် ၁၀ ရက် | Pyu | 64%
|
| Tibet | Yes | 1200s AD | བོད་ཟླ་བཅོ་གཅིག་པ། སྤེན། རྒྱལ་བོ་བཅོ་བདག་པ་བརྒྱུད་གཞི་བདུན་པ། སྤེན། ༢༥ / བོད་ཟླ་བཅོ་གཅིག་པ། སྤེན། ༢༥ | Tibetan | 57%
|
| Morocco, Algeria, Tunisia, Niger, Mali, Libya | Yes | ca. 100 BC - 400 AD | 2950 Dujember 19 | Berber | 50%
|
| Iran, Afghanistan | Yes | 1079 AD | ۱۱ دی ۱۳۷۸ | Jalali | 50%
|
| North Korea | Yes | 1997 AD | 주체 89년 1월 1일 | Juche | 50%
|
| South Korea | Yes | 600 AD | 기묘년 병자월 무오일 | Korean | 50%
|
| Mesoamerica | No | Before 36 BC | ![]() | Long Count | 50%
|
| India | Yes | 1957 AD | १९२१ शक, पौष ११ | Śaka | 50%
|
| Roman Republic, Roman Kingdom | No | 713 BC | Ante diem XIV Kalendas Ianuarias MMDCCLIII Ab Urbe Condita | Roman | 43%
|
| Tamil Nadu, Puducherry, Tamil Diaspora | Yes | Ancient | கலியுகம் 5100 ஆம் ஆண்டு மார்கழி 17 | Tamil | 43%
|
| Sumer, Mesopotamia | No | Bronze Age | ⟪𒐗 𒌚𒀊𒌓𒁺 𒁲𒂊𒈪𒀉𒊑𒂊𒋢 𒌍𒐙 𒐐𒐕 | Babylonian | 29%
|
| Russia, Serbia, Byzantine Empire | Yes | 988 AD | 1/1/7508 AM Indiction:8 Αʹ/Αʹ/͵ζφη А/А/҂зфи҃ | Byzantine | 21%
|
| Mesoamerica | Yes | 500 BC | (year n/a) | Haab' | 21%
|
| Taiwan | Yes | 1945 AD | 民国89年1月1日 | Minguo | 21%
|
| Egypt (abandoned almost immediately) | No | 238 BC | ͵βψμη Παχών κδʹ | Ptolemaic | 21%
|
| Mesoamerica | Yes | 1000 BC | (year n/a) | Tzolk'in | 21%
|
| Greece | No | 600 BC | XXV Ποσειδεών Ολ.694.3 | Attic | 14%
|
| Gaulish, Celtic states | No | Iron Age | XI MAT Simiuisonnios D AMB (Year I/VI) (Jan 1, 2021) | Coligny | 14%
|
| Macedon, Seleucid Empire | No | 400 BC | κγʹ Περίτιος ͵βτιβ SE | Ancient Macedonian / Seleucid | 14%
|
| Iran, India, Kurdistan | Yes | 900 AD | Amardad Tir 1369 Y.Z. | Shahanshahi | 14%
|
| Thailand, Laos, Cambodia, Vietnam, Myanmar, Guangxi Zhuang | Yes | Medieval | วันที่ 1 มกราคม พ.ศ.2543 | Thai Lunar | 14%
|
| Nepal, Northern India | Yes | Medieval | वि.सं २०५६ पौष १७ शनिवार | Vikram Samvat | 14%
|
| United States | Yes | 1963 AD | Sweetmorn, Chaos 1, Year of Our Lady of Discord 3166 | Discordian | 7%
|
| Iran, India, Kurdistan | Yes | 1900 AD | Dae Srosh 1368 Y.Z. | Fasli | 7%
|
| Canaan | No | 1000 BC | 𐤓𐤏.𐤉𐤓𐤇𐤅𐤋𐤒𐤔 (days and year unknown or not used) | Gezer | 7%
|
| Rural Palestine, Western Mesopotamia, Canaan, Judea, Amorite States | Possibly | Bronze Age | 8 min el-mīlâdi laş-şiâm (years not used) | Pentecontad | 7%
|
| Iran, India, Kurdistan | Yes | 1006 AD | Shehrevar Tir 1369 Y.Z. | Qadimi | 7%
|
| Aztecs | No | N/A | ![]() | Tōnalpōhualli | 7%
|
| Aztecs | No | N/A | ![]() | Xiuhpōhualli | 7%
|