Date in year · 2019 · The 2010s
On May 20, 2019, the International System of Units (SI): The base units are redefined, making the international prototype of the kilogram obsolete. The year's #1 song was "Old Town Road" by Lil Nas X featuring Billy Ray Cyrus. Prince Archie of Sussex, Prince Archie of Sussex, Prince Archie of Sussex would arrive in the same year.
Events
1
Births
0
Deaths
1
Year
2019
2010s
Featured · May 20, 2019
The International System of Units, internationally known by the abbreviation SI, is the modern form of the metric system and the world's most widely used system of measurement. It is the only system of measurement with official status in nearly every country in the world, employed in science, technology, industry, and everyday commerce. The International Bureau of Weights and Measures coordinates the SI.
Around 2019
2019 (MMXIX) was a common year starting on Tuesday of the Gregorian calendar, the 2019th year of the Common Era (CE) and Anno Domini (AD) designations, the 19th year of the 3rd millennium and the 21st century, and the 10th and last year of the 2010s decade.
What happened
Modern form of the metric system
The International System of Units, internationally known by the abbreviation SI, is the modern form of the metric system and the world's most widely used system of measurement. It is the only system of measurement with official status in nearly every country in the world, employed in science, technology, industry, and everyday commerce. The International Bureau of Weights and Measures coordinates the SI.
Farewells
Elsewhere that year
The class of 2019
Step through
Keep going
