what is the Antikythera mechanism?

115th Anniversary of the Antikythera Mechanism's Discovery
what is the Antikythera mechanism?

Name of doodle: 115th Anniversary of the Antikythera Mechanism’s Discovery
This doodle was shown: 17.05.2017
This is global doodle. It was shown for all countries
Keyword for this doodle: what is the Antikythera mechanism?, hvað er Antikythera tækið, מנגנון אנטיקיתרה, Mis on Antikythera mehhanism?, Антыкітэрскі механізм, Antikitera mehanizam
Link to doodle image: http://www.google.com/logos/doodles/2017/115th-anniversary-of-the-antikythera-mechanisms-discovery-6292005859622912-l.png

Teachers’ Day 2017 (Malaysia)

Teachers' Day 2017 (Malaysia)
Teachers’ Day 2017 (Malaysia)

Name of doodle: Teachers’ Day 2017 (Malaysia)
This doodle was shown: 16.05.2017
Countries, in which doodle was shown: Malaysia
Keyword for this doodle: Teachers’ Day 2017, Hari Guru
Link to doodle image: http://www.google.com/logos/doodles/2017/teachers-day-2017-malaysia-5394833899257856-law.gif

Teachers’ Day 2017 (South Korea, Mexico)

Teachers' Day 2017 (South Korea, Mexico)
Teachers’ Day 2017 (South Korea, Mexico)

Name of doodle: Teachers’ Day 2017 (South Korea, Mexico)
This doodle was shown: 15.05.2017
Countries, in which doodle was shown: Mexico, South Korea
Keyword for this doodle: Teachers’ Day 2017
Link to doodle image: http://www.google.com/logos/doodles/2017/teachers-day-2017-south-korea-mexico-4922739482689536-law.gif

Mother’s Day 2017

Mother's Day 2017
Mother’s Day 2017

Name of doodle: Mother’s Day 2017
This doodle was shown: 14.05.2017
This is global doodle. It was shown for all countries
Keyword for this doodle: Emadepäev 2017, அன்னையர் தினம் 2017!, মাতৃদিবস ২০১৭ , Siku ya Mama, 2017, මව්වරුන්ගේ දිනය 2017!
Link to doodle image: http://www.google.com/logos/doodles/2017/mothers-day-2017-5112903454687232-law.gif