🗓️
Emoji Calendar
May 20
What happened on this day
🐝
World Bee Day
UN day raising awareness of the importance of bees and other pollinators.
🇨🇲
Cameroon National Day
54 years ago
Cameroon marks the 1972 referendum that replaced its federal structure with a single united republic.
👖
Levi Strauss patents blue jeans
153 years ago
Levi Strauss and Jacob Davis take out US patent 139,121 in 1873 for riveting the pockets of work trousers.
📏
Metre Convention signed
151 years ago
Seventeen nations sign the treaty in Paris in 1875 that creates the international bureau of weights and measures, and with it the guardian of the metric system.
🗓️
View in Emoji Calendar
← May 19
May 21 →
🎲