The 33ed Parallel

Fun Fact: The first nuclear test called Operation Trinity was at the Alamogordo Air Base in New Mexico, along the 3️⃣3️⃣rd parallel.

Ordered by 3️⃣3️⃣rd president Harry Truman

It was conducted on 7/16/1945
7+1+6+1+9+4+5 = 3️⃣3️⃣