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In honor of Juneteenth and the 250th anniversary of America’s independence, California State Parks is offering free entry to over 30 state historic parks with the Historian Passport! Starting today through July 6, you can download the passport and explore sites like the CA State Indian Museum and Sutter’s Fort State Historic Park and learn how diverse groups helped shape California. How it works: 💰 Budget-Friendly: It’s FREE! One pass covers your whole group up to 4 people 📸 History in Hand: F

Why do we have margins? Rats! well, partly. People really did leave empty space around the edges because rats kept nibbling off important information. But although rodents accidentally helped inspire the habit, the margins we use today also developed for a smudge free, practical life. So yes, rats chewed on pages. But the bright red margin line? That came later, thanks to typewriters and neatness rules. Still, if you forget an assignment, don’t blame the dog. Just say the rats ate your homework!

🔥 NumPy Series #3 | Why is NumPy SO Fast? 👀 | Vectorization