Results for 46 BC
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Sci & Tech Chronology: In the year

46 bce

Astronomy

Acting on the advice of Greek astronomer Sosigenes [b. c. 90 bce], the Julian calendar of three 365-day years followed by one of 366 days is introduced in Rome by Julius Caesar. As a result of changes to make the seasons correct, the year 46 bce has 445 days, making it the longest year on record. The first leap years, due to an error of interpretation, will be three years apart, occurring in 45 bce, 42 bce, etc. until 9 bce, by which time the year will again be off the seasons (by 13 days). Leap years will be abandoned for 16 years (reducing the error to 9 days) and then reinstituted by Augustus in 8 ce. After that the four-year rule will be followed. See also 432 bce Astronomy; 123 ce Astronomy.


 
 
Wikipedia: 46 BC
Centuries: 2nd century BC - 1st century BC - 1st century
Decades: 70s BC  60s BC  50s BC - 40s BC - 30s BC  20s BC  10s BC 
Years: 49 BC 48 BC 47 BC - 46 BC - 45 BC 44 BC 43 BC
46 BC by topic
Politics
State leaders - Sovereign states
Birth and death categories
Births - Deaths
Establishments and disestablishments categories
Establishments - Disestablishments
46 BC in other calendars
Gregorian calendar 46 BC
Ab urbe condita 708
Armenian calendar N/A
Bahá'í calendar -1889 – -1888
Buddhist calendar 499
Chinese calendar 2591/2651
(甲戌年)
— to —
2592/2652
(乙亥年)
Coptic calendar -329 – -328
Ethiopian calendar -53 – -52
Hebrew calendar 37153716
Hindu calendars
 - Vikram Samvat 10 – 11
 - Shaka Samvat N/A
 - Kali Yuga 3056 – 3057
Holocene calendar 9955
Iranian calendar 667 BP – 666 BP
Islamic calendar 688 BH – 686 BH
Japanese calendar
 - Imperial Year Kōki 615
(皇紀615年)
Julian calendar 0
Korean calendar 2288
Thai solar calendar 498

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Sci & Tech Chronology. History of Science and Technology, edited by Bryan Bunch and Alexander Hellemans. Copyright © 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.  Read more
Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "46 BC" Read more

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