My first block was a rail fence. I pieced 4 of them together and made a small tablemat. It sits out in my foyer with a potted plant or candle in the center of it. I've come a long way since then!!

My first block was Ohio Star.

Haha, my first quilt block was WAY too ambitious for a new quilter. I had no idea what I was getting myself into. It had so many pieces that I got tired of it and put it away for 4 years. My 1st quilt took me 4 years to finish! LOL! Now it wouldn't be such a challenge though. There was a LOT of applique in that quilt. I hope my DD keeps it forever!

Mine was a stack and wack class where I made 16 blocks all In onego. The quilt cost my brother £36 because no one told me to take any fabric and I don't take any cards when going to classes.

In 1986 I was a junior in high school and taking a needlework class. Do they even offer those kind of classes anymore? Well we did everything from crochet to quilting. Mom had already taught me everything but quilting so it was an easy credit. That is until it came to the quilt block. We had to make one. The teacher had several blocks to pick from to make a potholder. I picked the fan block. Thinking it was pretty, well it was pretty hard! After two weeks of piecing and ripping I turned in my unquilted wonky fan block and vowed never to quilt again. Later in the year we did chicken scratch, I fell in love with the lacey looking gingham and made my first quilt with the alphabet on yellow gingham and I even quilted it, all by hand start to finish. And that was the first and last totally hand quilted anything I've made. But I still had no interest in quilting. Who would have thought I'd be obsessed with it now.

My first Block was a starflower. No one had told me not to start with bias and points I did not chop any points and it turned out great. It is the quilt in my Avatar and it has different fabrics cotton, poly blends, parts of a sheet. I use it on my bed.

Seems quite a few of us did the same thing! The most eye-catching blocks tend to be the hardest. My first block was the tumbling baby block - in red, blue and cream. Those colors date it to the early 1990's. :) I made a cardboard template and cut the pieces with scissors.
Great question, OP!

My first block was the log cabin block.

My first was Kings X

Sorry I cant remember my 1st block/quilt. I will tell you it was the size of a king size water bed. I sewed it and hand quilted it in my 1st year. The following year was my 1st quilt show. I still have that quilt to this day.(28 years ago) Of course a lot of the material is worn. I've got Lincoln????, in mind.