September 23, 1868
Event: Grito de Lares proclaims Puerto Rico's independence
The historic event that happened on Sept. 23 in Puerto Rico is El Grito de Lares. (independence)Chat with our AI personalities
world war II
September 11,2001 Attacks.
The breaking point was when Germany invaded Poland on September 3rd 1939
Germany invaded Poland
In the 1930's, Britain and France had a defence agreement with Poland. On 1 September 1939, German forces attacked Poland, so on 3 September 1939 Britain and France declared war on Germany.