(Little Tale) (Be sure to capitalize the first letter of every major word of your title)

Yesterday morning at 10:15 I was in a coffee shop (You forgot to add the word “shop” after “coffee) in the center of Bologna. (In English the time is displayed with the hours first followed by a colon (:) and then the minutes)
Bologna is a nice city in the north-center of in the northern central part of (This is more grammatically correct than saying “in the north center of”) Italy. It’s famous for the ancient buildings, the arcades. The towers are of medieval origin. (You need a period after “arcades” and a capital “T” for “the” and the word “are” needs to be added to make this sentence grammatically correct.)

There is a little story about the “Asinelli’s Tower”, the highest tower and symbol of Bologna. Thanks to this tower an Italian physicist (Guglielmini) demonstrated in 18th century that the earth rotates on its self. Letting (Put a period after “self” and start a new sentence with “letting”) go of (The word “of” is added after “go” so the reader knows what Guglielmini let go of) small lead balls from the top of the tower; he noticed that the small balls weren’t falling in a perpendicular way, but with a deviation of 17 mm. That’s because the earth rotates with a velocity.
Anyway, (A comma is needed after “anyway” it signals the reader the topic is about to change) while I was at the coffeeshop, (A comma is inserted after shop because a pause is needed before continuing the rest of the sentence) in front of me there was a lady sitting on the table at a table (“at a table” is more grammatically correct than saying “on the table” which is not correct.) who was pouring wine into a glass.
The wine finished and so When the women finished the wine (“When the women finished the wine” is more grammatically correct than “the wine finished and so”) she fell to the floor. I remained astonished and decided to help the woman; while I was helping the (“The” is added so the reader knows which woman you helped) woman, her boyfried arrived. Fortunately he understood the situation. I noticed on the wall there was a picture of a bird which was flying among the clouds, (Add a comma when using a coordinating conjunction) and outside I saw a child who was waiting for his mom in front of a shop.
At 11 I came back home and put my hands into my pocket and took my home’s (“Keys” by itself is fine you do not need home’s, home’s is grammatically incorrect) keys.
Inside the room there was a letter on part of from (“On part of” is not grammatically correct and should be “from” instead) my wife.
“Dear ex-husband, today I was shopping with Marie and we saw you molesting a woman in a coffee shop. (You need to specify what kind of shop your wife saw you in, so the reader understands and the sentence is clear)
Tomorrow I will help you find a new house!” (No period is needed after the quotation marks.)