<p>This is the best resource I've found online.</p>
<p><a href="https://i.sstatic.net/yblrP.png" rel="noreferrer"><img src="https://i.sstatic.net/yblrP.png" alt="Era Boundaries" /></a></p>
<p><a href="https://cardanosolutions.github.io/kupo/#section/Era-Boundaries" rel="noreferrer">Source</a></p>

CC BY-SA 4.0
2022-08-29T13:56:16.077Z
2022-08-29T13:56:16.077Z
Will
<p>On mainnet:</p>
<ul>
<li>Byron started at epoch 0.</li>
<li>Shelley started at epoch 208.</li>
</ul>
<p>Hopefully someone else can fill in the rest.</p>

CC BY-SA 4.0
2022-03-04T22:40:42.007Z
2022-03-04T22:40:42.007Z
Erik de Castro Lopo
<p>You are looking for the <a href="https://docs.blockfrost.io/#tag/Cardano-Network/paths/%7E1network%7E1eras/get" rel="nofollow noreferrer"><code>/network/eras</code> Blockfrost endpoint</a>.</p>

CC BY-SA 4.0
2023-01-27T22:57:18.847Z
2023-01-27T22:57:18.847Z
Marek Mahut - StakeNuts
<p>Byron (Genesis) (09/27/2017) - Epoch 1, Block 1?</p>
<p>Shelley (07/29/2020) - Epoch 208, Block 4490511</p>
<p>Goguen (if you consider Alonzo HFC the start of Goguen) (09/12/2021) - Epoch 290, Block 6236060</p>
<p>Basho and Voltaire are currently in development.</p>
<p>Important to note: the Cardano eras are rough pictures of where development is focused during that era, not hard dates. Parts of Shelley and Goguen are still being worked (decentralization parameters and smart contract optimizations, respectively). It is not clear cut whether something like the integrations of CIP 31, 32, and 33 should be considered part of Goguen or Basho. Also, project Catalyst is technically part of Voltaire and has been around for over a year at this point.</p>

CC BY-SA 4.0
2022-03-06T22:07:45.980Z
Is there a website you got the data from? I am asking so that I can look it up when the next era rolls out.
KryptoKing
CC BY-SA 4.0
2022-08-02T17:49:15.447Z
No, tbh I just remembered 
zhekson
CC BY-SA 4.0
2022-08-03T08:09:06.160Z
damn that's a good memory
KryptoKing
CC BY-SA 4.0
2022-03-05T03:25:38.803Z
2022-03-05T03:25:38.803Z
zhekson
<p>According to the <a href="https://roadmap.cardano.org/en/" rel="nofollow noreferrer">roadmap</a> Cardano has (or will have) five eras. Byron, Shelley, Goguen, Basho and Voltaire. What block height did Cardano change from one era to the next?</p>

<shelley><byron>
What are the block heights of the different eras of cardano?
# What are the block heights of the different eras of cardano?

(Asked by: username_0 on 2022-03-04)

According to the [roadmap](https://roadmap.cardano.org/en/) Cardano has (or will have) five eras. Byron, Shelley, Goguen, Basho and Voltaire. What block height did Cardano change from one era to the next?

**Tags:** shelley, byron

---

## 4 answers

### Answer by username_1 on 2022-08-29. Score: 5

This is the best resource I've found online.

[![Era Boundaries](https://i.sstatic.net/yblrP.png)](https://i.sstatic.net/yblrP.png)

[Source](https://cardanosolutions.github.io/kupo/#section/Era-Boundaries)


---

### Answer by username_4 on 2022-03-05. Score: 3

Byron (Genesis) (09/27/2017) - Epoch 1, Block 1?

Shelley (07/29/2020) - Epoch 208, Block 4490511

Goguen (if you consider Alonzo HFC the start of Goguen) (09/12/2021) - Epoch 290, Block 6236060

Basho and Voltaire are currently in development.

Important to note: the Cardano eras are rough pictures of where development is focused during that era, not hard dates. Parts of Shelley and Goguen are still being worked (decentralization parameters and smart contract optimizations, respectively). It is not clear cut whether something like the integrations of CIP 31, 32, and 33 should be considered part of Goguen or Basho. Also, project Catalyst is technically part of Voltaire and has been around for over a year at this point.

> **Comments:**
> **username_5**: Is there a website you got the data from? I am asking so that I can look it up when the next era rolls out.  
> **username_4**: No, tbh I just remembered   
> **username_5**: damn that's a good memory  

---

### Answer by username_2 on 2022-03-04. Score: 0

On mainnet:

* Byron started at epoch 0.
* Shelley started at epoch 208.

Hopefully someone else can fill in the rest.


---

### Answer by username_3 on 2023-01-27. Score: 0

You are looking for the [`/network/eras` Blockfrost endpoint](https://docs.blockfrost.io/#tag/Cardano-Network/paths/%7E1network%7E1eras/get).


---

